Channeling sibling rivalries and deadly childhood pacts, this series follows true-crime mysteries surrounding cases of these double-duty archetypes.
A Tale of Two Sisters
Bad Seeds
My Brother’s Keeper
Trust Fund Terror
Tribe of Two
Double Barrel
Dante and Donte's Inferno
Twisted Sisters
Episode 9
Episode 10
Episode 11
Episode 12
Space Race
The Snowman
Myth of the Zodiac Killer
Bloodwork
Cult of Personality
Dateline
The Playing Card Killer
Pacto De Silencio, Santiago Corella El Nani Y La Mafia Policial
Delhi Crime
I Love You, Now Die: The Commonwealth v. Michelle Carter
Very Scary People
Suicide Cults
The Disappearance of Madeleine McCann
Descent of a Serial Killer
Conversations with a Killer: The John Wayne Gacy Tapes
Deadly Wives
Evil Kin
Unsolved Mysteries
Celebrity Crime Files
Inside Crime Scene