Monsters can be found lurking behind any innocent smile and on any street corner in America. Never-before-seen-video footage stares straight into the eyes of these killers who hide in plain sight. Anyone can be a monster.
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6 eps
Season 1
2016
10 eps
Season 2
2017
12 eps
Season 3
2018
12 eps
Season 4
2019
10 eps
Season 5
2020
10 eps
Season 6
2020
10 eps
Season 7
2021
10 eps
Season 8
2022
10 eps
Season 9
2022
10 eps
Season 10
2023
10 eps
Season 11
2023
10 eps
Season 12
2024
Status
Returning Series
Original Language
EN
Network
Investigation Discovery
Production
Discovery, Arrow Media
★ 7.8
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2004
★ 8.6
People Magazine Investigates
2016
★ 8.0
Fear Thy Neighbor
2014
★ 7.9
Forensic Files
1996
★ 6.7
Files of the Unexplained
2024
★ 8.5
Cold Case Files
1999
★ 7.8
What's New, Scooby-Doo?
2002
★ 7.8
History's Greatest Mysteries
2020
★ 7.9
Inspector George Gently
2008
★ 6.3
Traces
2019
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