Overview
Channeling sibling rivalries and deadly childhood pacts, this series follows true-crime mysteries surrounding cases of these double-duty archetypes.
Seasons & Episodes
Season 1
Season 2
Season 3
Season 4
Season 5
Season 6
Details
First Aired
2012-07-26
Status
Returning Series
Network
Investigation Discovery
Type
Documentary
Language
EN
Episodes
33
Cast
Robert Olausen
Kevin Sidenstricker
James Davenjay
Diana Abrecht
Matthew James Gulbranson
CJ Johnson
Ali Dash
Joe Lenig
Brian St. August
Sonia Debreczeni
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