A Promise to Helene

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.

Release Date: 2021-03-08
Seasons: 1 2 3 4
TMDb: 7.0/10
  • Language: English

Other episodes for this season

Under The Desert Sky
Episode 1 - Under The Desert Sky
The Officer's Wife
Episode 2 - The Officer's Wife
The Eastlake Conspiracy
Episode 3 - The Eastlake Conspiracy
A Novel Defense
Episode 4 - A Novel Defense
Smoke And Mirrors
Episode 5 - Smoke And Mirrors
Somebody's Daughter
Episode 6 - Somebody's Daughter
The Last Dance
Episode 7 - The Last Dance
Return to the Lonely Road
Episode 8 - Return to the Lonely Road
The Man Who Talked to Dogs
Episode 9 - The Man Who Talked to Dog...
Out of the Darkness
Episode 10 - Out of the Darkness
Justice for Nikki
Episode 11 - Justice for Nikki
House of Secrets
Episode 12 - House of Secrets
The Black Widow of Lomita
Episode 13 - The Black Widow of Lomita
The Pink Gun Mystery
Episode 14 - The Pink Gun Mystery
Even the Devil Went to Church
Episode 15 - Even the Devil Went to Ch...
The Day Jennifer Disappeared
Episode 16 - The Day Jennifer Disappea...
In the Dead of Night
Episode 17 - In the Dead of Night
A Promise to Helene
Episode 18 - A Promise to Helene
Death of a Golden Girl
Episode 19 - Death of a Golden Girl
Secrets From the Grave
Episode 20 - Secrets From the Grave
Fallen
Episode 21 - Fallen
The Box
Episode 22 - The Box
The Creek
Episode 23 - The Creek
Mystery on Blood Mountain
Episode 24 - Mystery on Blood Mountain
The Betrayal of Sarah Stern
Episode 25 - The Betrayal of Sarah Ste...
The Dead of Night
Episode 26 - The Dead of Night
Deadly Valentine
Episode 27 - Deadly Valentine
Down the Back Staircase
Episode 28 - Down the Back Staircase
The Ranch
Episode 29 - The Ranch
What Happened to Amy?
Episode 30 - What Happened to Amy?
The Secret of Spirit Lake
Episode 31 - The Secret of Spirit Lake
The Plan
Episode 32 - The Plan
The Haunting
Episode 33 - The Haunting
Internal Affairs
Episode 34 - Internal Affairs
Return to Manitowoc County
Episode 35 - Return to Manitowoc Count...
Twisted
Episode 36 - Twisted
Good & Evil
Episode 37 - Good & Evil
The House
Episode 38 - The House
Breakout
Episode 39 - Breakout
Family Affair
Episode 40 - Family Affair
The Women and Dirty John
Episode 41 - The Women and Dirty John
Open Water
Episode 42 - Open Water
The Silhouette
Episode 43 - The Silhouette
The Sting
Episode 44 - The Sting
Deadly Desire
Episode 45 - Deadly Desire
Plot Twist
Episode 46 - Plot Twist
The Life and Death of Princess Diana
Episode 47 - The Life and Death of Pri...
The Last Dive
Episode 48 - The Last Dive