Dateline Unforgettable
Oxygen True Crime Running
7 Seasons · 121 Episodes · Premiered March 8, 2021
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Oxygen True Crime
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Seasons & Episodes
Season 1
25 episodes
E01
Secret Lives
Tue, Mar 9 2021 1:00 AM GMT+0000
120 min
E02
Mystery in Orange County
Wed, Mar 10 2021 1:00 AM GMT+0000
120 min
E03
The Client
Thu, Mar 11 2021 1:00 AM GMT+0000
120 min
E04
Lauren's Promise
Wed, Nov 24 2021 1:00 AM GMT+0000
120 min
E05
The Grudge
Wed, Dec 1 2021 1:00 AM GMT+0000
120 min
E06
Conduct Unbecoming
Wed, Dec 15 2021 1:00 AM GMT+0000
120 min
E07
And Then There Were Three
Wed, Dec 22 2021 1:00 AM GMT+0000
120 min
E08
Collision
Wed, Dec 29 2021 1:00 AM GMT+0000
120 min
E09
Voices for Vanessa
Wed, Jan 5 2022 1:00 AM GMT+0000
120 min
E10
She Never Left
Wed, Jan 12 2022 1:00 AM GMT+0000
120 min
E11
Into the Night
Wed, Jan 19 2022 1:00 AM GMT+0000
120 min
E12
A Texas Twist
Wed, Jan 26 2022 1:00 AM GMT+0000
120 min
E13
At the Bottom of the Lake
Wed, Feb 2 2022 1:00 AM GMT+0000
120 min
E14
The Goldfinger Mystery
Wed, Feb 9 2022 1:00 AM GMT+0000
120 min
E15
Shannon's Story
Wed, Feb 23 2022 1:00 AM GMT+0000
120 min
E16
The Perfect Guy
Wed, Mar 2 2022 1:00 AM GMT+0000
120 min
E17
Frantic
Wed, Mar 16 2022 12:00 AM GMT+0000
120 min
E18
Finding Venus
Wed, Mar 23 2022 12:00 AM GMT+0000
120 min
E19
The Black Box
Wed, Mar 30 2022 12:00 AM GMT+0000
120 min
E20
Deliberate Evil
Wed, Apr 6 2022 12:00 AM GMT+0000
120 min
E21
At the Edge of Town
Wed, Apr 13 2022 12:00 AM GMT+0000
120 min
E22
The Interrogation
Wed, Apr 20 2022 12:00 AM GMT+0000
120 min
E23
Unchecked Evil
Wed, Apr 27 2022 12:00 AM GMT+0000
120 min
E24
Mystery at Heath Bar Farm
Wed, May 4 2022 12:00 AM GMT+0000
120 min
E25
The Collector
Wed, May 11 2022 12:00 AM GMT+0000
120 min
Season 2
48 episodes
E01
Under the Desert Sky
Wed, May 18 2022 12:00 AM GMT+0000
120 min
E02
The Officer's Wife
Wed, Jun 15 2022 12:00 AM GMT+0000
120 min
E03
The Eastlake Conspiracy
Wed, Jun 22 2022 12:00 AM GMT+0000
120 min
E04
A Novel Defense
Wed, Jun 29 2022 12:00 AM GMT+0000
120 min
E05
Smoke and Mirrors
Wed, Jul 6 2022 12:00 AM GMT+0000
120 min
E06
Somebody's Daughter
Wed, Jul 13 2022 12:00 AM GMT+0000
120 min
E07
The Last Dance
Wed, Jul 20 2022 12:00 AM GMT+0000
120 min
E08
Return to the Lonely Road
Wed, Jul 27 2022 12:00 AM GMT+0000
120 min
E09
The Man Who Talked to Dogs
Wed, Aug 3 2022 12:00 AM GMT+0000
120 min
E10
Out of the Darkness
Wed, Aug 10 2022 12:00 AM GMT+0000
120 min
E11
Justice for Nikki
Wed, Aug 17 2022 12:00 AM GMT+0000
120 min
E12
House of Secrets
Wed, Aug 24 2022 12:00 AM GMT+0000
120 min
E13
The Black Widow of Lomita
Wed, Oct 5 2022 12:00 AM GMT+0000
120 min
E14
The Pink Gun Mystery
Wed, Oct 12 2022 12:00 AM GMT+0000
120 min
E15
Even the Devil Went to Church
Wed, Oct 19 2022 12:00 AM GMT+0000
120 min
E16
The Day Jennifer Disappeared
Wed, Oct 26 2022 12:00 AM GMT+0000
120 min
E17
In the Dead of Night
Wed, Nov 2 2022 12:00 AM GMT+0000
120 min
E18
A Promise to Helene
Wed, Nov 9 2022 1:00 AM GMT+0000
120 min
A college student is found murdered and the case sits cold for nearly 40 years; Josh Mankiewicz reflects on the vow that keeps the case alive and the innovative method used to catch the killer.
E19
Death of a Golden Girl
Wed, Nov 16 2022 1:00 AM GMT+0000
120 min
An aspiring Playboy model is murdered in Miami, FL. A seven second clip of her last moments alive are caught on security video and could hold key clues. The haunting images make this case one of Dennis Murphy's most memorable.
E20
Secrets From the Grave
Wed, Nov 23 2022 1:00 AM GMT+0000
120 min
A man claims his wife died by suicide. A suspicious house fire 24 years later raises doubts. Josh Mankiewicz remembers the suspect who could not stop talking
E21
Fallen
Wed, Nov 30 2022 1:00 AM GMT+0000
120 min
When a pastor loses a second wife in an accident, authorities become suspicious. Dennis Murphy returns to this unforgettable story of evil and betrayal, wondering how far this a man of God might have fallen. Dennis still can't believe the answer.
E22
The Box
Wed, Dec 7 2022 1:00 AM GMT+0000
120 min
Years after a Montana man is found dead, his son searches for answers. Keith Morrison cannot forget that son who opened a box, and faced a terrifying family secret.
E23
The Creek
Wed, Dec 14 2022 1:00 AM GMT+0000
120 min
After a 15-year-old girl disappears, investigators discover a creek where the local teenagers hang out. This hideaway may hold answers. Dennis Murphy looks back on the case that kept him guessing until its astonishing conclusion.
E24
Mystery On Blood Mountain
Wed, Dec 21 2022 1:00 AM GMT+0000
120 min
Gary Hilton is a name Dennis Murphy will always remember. A hiker goes missing and authorities suspect Hilton is reenacting a slasher movie. Dennis reflects on the real-life murder spree that terrorized the American South.
E25
The Betrayal Of Sarah Stern
Thu, Jul 27 2023 12:00 AM GMT+0000
120 min
Keith Morrison revisits a story that has haunted him for years. When detectives find a missing woman's car abandoned on a bridge, their investigation uncovers a tangled plot involving money, friendship and a deadly betrayal.
E26
The Dead of Night
Thu, Aug 3 2023 12:00 AM GMT+0000
120 min
E27
Deadly Valentine
Thu, Aug 10 2023 12:00 AM GMT+0000
120 min
Nathan and Denise Leuthold built their family on faith, but suddenly one of them was dead and the other was under suspicion. It's a story that stays with Andrea Canning, both because of what happened and when it happened: Valentine's Day.
E28
Down The Back Staircase
Thu, Aug 17 2023 12:00 AM GMT+0000
120 min
A novelist's wife is found dead at the bottom of the stairs. Investigators wonder if it was an accident or murder. Dennis Murphy interviewed main suspect Michael Peterson and now returns to the case with insight only he can share.
E29
The Ranch
Thu, Aug 24 2023 12:00 AM GMT+0000
120 min
Eduardo Valseca was kidnapped in a planned kidnapping. Keith Morrison reflects on the family he spent years trying to track down. The Valecas were not destroyed by what happened to them.
E30
What Happened To Amy?
Thu, Aug 31 2023 12:00 AM GMT+0000
120 min
For more than 30 years, Ohio investigators have searched for answers in the murder of 10-year-old Amy Mihaljevic. The details of the case still haunt Josh Mankiewicz. Now he and investigators are enlisting your help to solve it.
E31
The Secret Of Spirit Lake
Thu, Sep 7 2023 12:00 AM GMT+0000
120 min
An advocate for the missing Indigenous women looks into the disappearance of her niece and uncovers some issues in the law enforcement.
E32
The Plan
Thu, Sep 14 2023 12:00 AM GMT+0000
120 min
E33
The Haunting
Thu, Sep 21 2023 12:00 AM GMT+0000
120 min
E34
Internal Affairs
Thu, Sep 28 2023 12:00 AM GMT+0000
120 min
E35
Return to Manitowoc County
Thu, Oct 5 2023 12:00 AM GMT+0000
120 min
E36
Twisted
Thu, Oct 12 2023 12:00 AM GMT+0000
120 min
E37
Good And Evil
Thu, Oct 19 2023 12:00 AM GMT+0000
120 min
After a young woman's body is discovered at a trash facility, a detective promises justice and comes face-to-face with a serial killer; Keith Morrison revisits the case.
E38
The house
Thu, Oct 26 2023 12:00 AM GMT+0000
120 min
A woman finds her father, a former FBI agent, murdered at his house; after digging into his past, police suspect the killer might be close to home; for Josh Mankiewicz, the toxic marriage at the heart of this case makes it unforgettable
E39
Breakout
Thu, Nov 2 2023 12:00 AM GMT+0000
120 min
E40
Family Affair
Thu, Nov 9 2023 1:00 AM GMT+0000
120 min
The heir to a legendary hotel is brutally murdered, and detectives learn he had no shortage of enemies; Dennis Murphy takes a fresh look at this extraordinary investigation, a hunt for a killer he calls the most ruthless he's ever seen.
E41
The Women and Dirty John
Thu, Nov 16 2023 1:00 AM GMT+0000
120 min
E42
Open Water
Thu, Nov 23 2023 1:00 AM GMT+0000
120 min
E43
The Silhouette
Thu, Nov 30 2023 1:00 AM GMT+0000
120 min
Debbie Kelly and Lars Itzo make their marriage of opposites work; when Debbie is killed, there is no question about who shot her, yet the explanation of why is one of the most confounding Andrea Canning has heard.
E44
The Sting
Thu, Dec 7 2023 1:00 AM GMT+0000
120 min
Newlywed Dalia Dippolito comes home from the gym to find out her husband has been killed; in a case Dennis Murphy will never forget, almost nothing is as it seems; he explores whether Dalia was a pawn in a hoax gone wrong or simply diabolical.
E45
Deadly Desire
Thu, Dec 14 2023 1:00 AM GMT+0000
120 min
E46
Plot twist
Thu, Dec 21 2023 1:00 AM GMT+0000
120 min
A series of reports chosen by "Dateline" correspondents that answers the question they most often get asked -- what their most memorable story is and why.
E47
The Life and Death of Princess Diana
Thu, Dec 28 2023 1:00 AM GMT+0000
120 min
Andrea Canning looks back on the royal who has fascinated her since childhood, Princess Diana. She explores Diana's real story, including a look at her troubled marriage, turbulent life and the investigation into her death.
E48
The Last Dive
Thu, Jan 4 2024 1:00 AM GMT+0000
120 min
A couple takes a scuba-diving trip to the British Virgin Islands; on their last dive, one of them surfaces but the other does not; police quickly suspect the drowning was no accident; now Dennis Murphy gives this unforgettable story a second look.
Season 3
11 episodes
E01
On a Dark, Deserted Highway
Fri, Jan 19 2024 1:00 AM GMT+0000
120 min
Keith Morrison recalls how a deadly high-speed chase in Montana led "Dateline" on a search to unravel a mystery unlike any he has told, one where a missionary turned into a monster and committed one of the state's most notorious crimes.
E02
Siren Song
Fri, Jan 26 2024 1:00 AM GMT+0000
120 min
A mystery in paradise unfolds when Sarm Heslop vanishes from her boyfriend's yacht. In a case that made international headlines, Andrea Canning recounts her memorable journey searching for a particular person of interest.
E03
The Woman Who Couldn't Scream
Fri, Feb 2 2024 1:00 AM GMT+0000
120 min
A 911 call reporting an apartment break-in holds the key to solving the mysterious murder of a young graduate student named Katie Sepich; her case contained many twists, and her family's grit still astonishes Josh Mankiewicz.
E04
The Devil Was Watching
Fri, Feb 9 2024 1:00 AM GMT+0000
120 min
When Tina Sandoval disappears, her parents and loved ones spend years searching for her; Dennis Murphy takes a fresh look at the secret Tina kept and at the demon who forced her loved ones to make an agonizing decision.
E05
Left for Dead
Fri, Feb 16 2024 1:00 AM GMT+0000
120 min
The survivor of a horrible attack is convinced the police on the case have the wrong suspect. Keith Morrison looks back on his heart-wrenching interview with the victim and her courageous quest to uncover the truth.
E06
Point Blank
Fri, Feb 23 2024 1:00 AM GMT+0000
120 min
E07
Complicated
Fri, Mar 1 2024 1:00 AM GMT+0000
120 min
E08
The Window
Fri, Mar 8 2024 1:00 AM GMT+0000
120 min
A Florida father is determined to find out what happened to his daughter after her fatal fall from a penthouse apartment; Dennis Murphy revisits the dramatic events as this dad confronts overwhelming obstacles to learn the truth.
E09
The Evil That Watches
Fri, Mar 15 2024 12:00 AM GMT+0000
120 min
When three people are found dead on the same day in a Kentucky town, investigators know that it isn't a coincidence; years pass before an arrest; Keith Morrison reflects on the triple murder that shook a tight-knit community to its core.
E10
The Murder of Lorenzen Wright
Fri, Mar 22 2024 12:00 AM GMT+0000
120 min
The fatal shooting of NBA star and hometown hero Lorenzen Wright sends shockwaves through the city of Memphis, Tenn.; Andrea Canning takes a new look at the diabolical plot behind Wright's murder and his family's tireless fight for justice.
E11
A Walk in the Rain
Fri, Mar 29 2024 12:00 AM GMT+0000
120 min
Season 4
8 episodes
E01
What Happened in Vegas
Sat, Jun 8 2024 12:00 AM GMT+0000
120 min
A chance encounter on the Pacific Coast Highway with a woman he first spoke to in a jail cell leads Keith Morrison to re-examine the mysterious death of Las Vegas casino magnate Ted Binion.
E02
Lonestar Obsession
Sat, Jun 15 2024 12:00 AM GMT+0000
120 min
When Dr. Joe Sonnier is murdered, the investigation reveals simmering jealousies and a love triangle. Andrea Canning recalls the brilliant yet humble doctor who dedicated his life to helping others
E03
Twisted Faith
Sat, Jun 22 2024 12:00 AM GMT+0000
120 min
A charismatic pastor's dark secrets come to light, triggering a murder investigation. Josh Mankiewicz looks back at a case that shattered a congregation and exposed the cost of their unshakable trust.
E04
Sex, Lies & Murder
Sat, Jun 29 2024 12:00 AM GMT+0000
120 min
When a woman is found dead in her SUV, the investigation into her murder reveals a tangled web of sex and lies. Dennis Murphy looks back on his unusual interview with the lead suspect.
E05
In A Lonely Place
Fri, Jul 5 2024 12:00 AM GMT+0000
120 min
Chris Smith's family received an email stating that he was leaving California to surf the world. Months later, they wondered if he really left. Keith Morrison offers new insights into the case.
E06
The Music Box
Fri, Jul 12 2024 12:00 AM GMT+0000
120 min
After Lisa Zeigert is killed, her family keeps the case in the public eye for decades. Andrea Canning reflects on the harrowing mystery and discusses the inspiration she's drawn from Lisa's loved ones.
E07
Detective Story
Fri, Jul 19 2024 12:00 AM GMT+0000
120 min
A woman in Los Angeles is killed in an apparent botched burglary; nearly 20 years later, a detective discovers a clue that turns the case on its head; Josh Mankiewicz revisits a story with a twist that surprised him.
E08
The Secret Life of the Homecoming Queen
Fri, Jul 26 2024 12:00 AM GMT+0000
120 min
Police investigate when the seemingly storybook romance between a football player and the homecoming queen ends in a death.
Season 5
8 episodes
E01
Killer Role
Fri, Jan 17 2025 1:00 AM GMT+0000
120 min
E02
Safari Story
Fri, Jan 24 2025 1:00 AM GMT+0000
120 min
E03
The Favorite Son
Fri, Jan 31 2025 1:00 AM GMT+0000
120 min
E04
The Trial of Lori Vallow Daybell
Fri, Feb 7 2025 1:00 AM GMT+0000
120 min
E05
The Bridge
Fri, Feb 14 2025 1:00 AM GMT+0000
120 min
E06
The Life She Wanted Role
Fri, Feb 21 2025 1:00 AM GMT+0000
120 min
E07
True Confession
Fri, Feb 28 2025 1:00 AM GMT+0000
120 min
E08
After the Dance
Fri, Mar 7 2025 1:00 AM GMT+0000
120 min
Season 6
9 episodes
E01
The Shadow in the Window
Fri, Jun 6 2025 12:00 AM GMT+0000
60 min
A teenager's life is turned upside down by a shocking discovery as what seems like a fatal accident reveals itself to be something much more disturbing.
E02
The House on Shalimar Way
Fri, Jun 13 2025 12:00 AM GMT+0000
120 min
When Leslie Neulander dies after what seems to be an accidental fall in the shower, her book club friends join forces to seek justice on her behalf. Andrea Canning reflects on some of the most determined women she's ever met.Â
E03
65 Seconds
Fri, Jun 20 2025 12:00 AM GMT+0000
120 min
After an apparent home invasion in Minnesota leaves Heidi Firkus dead and her husband, Nick, hospitalized, detectives learn the young couple was facing financial troubles.
E04
Secrets in Pleasant Prairie
Fri, Jun 27 2025 12:00 AM GMT+0000
120 min
An investigation into the poisoning of Wisconsin mother-of-two Julie Jensen takes a surprising turn when detectives learn that she wrote a letter days before her death pointing to a possible suspect.
E05
The Perfect Life
Fri, Jul 4 2025 12:00 AM GMT+0000
120 min
E06
Justice for Joy
Fri, Jul 11 2025 12:00 AM GMT+0000
120 min
E07
Evil Walked Through the Door
Fri, Jul 18 2025 12:00 AM GMT+0000
120 min
Two murders in Toronto ignite an investigation that spans four decades; breakthroughs in investigative genetic genealogy help crack the case.
E08
The Trouble at Dill Creek Farm
Fri, Jul 25 2025 12:00 AM GMT+0000
120 min
When a pharmacist is found shot to death in his Wisconsin farmhouse, investigators embark on a 15 year hunt for his elusive killer.
E09
The Day Akia Disappeared
Fri, Aug 1 2025 12:00 AM GMT+0000
60 min
A pregnant woman vanishes before her own baby shower and her worried family raises the alarm as detectives unravel a chilling mystery. For Josh Mankiewicz, it was a heartbreaking case that stayed with him long after the cameras stopped rolling. Â
Season 7
12 episodes
E01
Deadly dance
Fri, Oct 31 2025 12:00 AM GMT+0000
120 min
A former ballerina shoots her husband in what she alleges was an act of self-defense; the ensuing investigation and dramatic trial spark protests and receives national attention.
E02
The Pin at Apartment 210
Fri, Nov 7 2025 1:00 AM GMT+0000
120 min
A young Tennessee woman mysteriously vanishes and misses her family's Thanksgiving dinner; determined to track her down, her family takes matters into their own hands, pursuing every digital clue she left behind.
E03
Ghost Rider
Fri, Nov 14 2025 1:00 AM GMT+0000
120 min
After a nurse and mother-of-three is murdered inside her Illinois home, investigators uncover security camera footage that could be key to solving the case
E04
Justice For Kristin Smart
Fri, Nov 21 2025 1:00 AM GMT+0000
120 min
The parents of Kristin Smart speak out in their first network exclusive interview since the recent sentencing of their daughter's killer
E05
The Secrets of Birch View Drive
Fri, Dec 5 2025 1:00 AM GMT+0000
120 min
After an apparent brazen home invasion during the holiday season in a quiet Connecticut community leaves Connie Dabate dead, investigators discover a silent witness that cracks the case wide open
E06
The Haunted House Confession
Sat, Dec 13 2025 1:00 AM GMT+0000
120 min
After 25-year-old Chantay Blankinship's remains are found at an abandoned building that locals call the Haunted House, investigators sort through dead-end leads until a stunning confession during a church service changes everything.
E07
The Agent's Wife
Sat, Dec 20 2025 1:00 AM GMT+0000
120 min
Authorities take two years and three trials to solve the shooting death of the wife of an FBI agent in the kitchen of her family's Virginia home.
E08
Wreckage
Fri, Jan 9 2026 1:00 AM GMT+0000
120 min
E09
The Day Alissa Disappeared
Fri, Jan 16 2026 1:00 AM GMT+0000
120 min
E10
Murder in Minot
Fri, Jan 23 2026 1:00 AM GMT+0000
120 min
Beloved 18-year-old college student Anita Knutson is found stabbed to death in her apartment; the case takes nearly eighteen years and the undying commitment of friends, family and investigators to reach resolution.
E11
The clearing
Fri, Jan 30 2026 1:00 AM GMT+0000
120 min
When the body of an Ohio woman is found in a wooded area near her home months after she went missing, investigators must determine if her death was a suicide or homicide
E12
Losing faith
Thu, Feb 12 2026 1:00 AM GMT+0000
120 min
In a powerful two-hour special titled "Losing Faith," correspondent Josh Mankiewicz delves into the tragic fatal shooting of Jamie Faith outside his Dallas home in 2020. The special report unfolds the tragic story of Jamie Faith, whose life was abruptly taken in a fatal shooting.
Cast
Keith Morrison
as Himself