Synopsis
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.
Series Information
- First Aired
- 2016
- Last Aired
- 2025
- Seasons
- 13
- Episodes
- 130
- Episode Length
- 43 min
- Genre
- Crime, Documentary
- Network
- Investigation Discovery
- Status
- Returning Series
- Rating
- 7.4 / 10 (23 votes)
Official Trailer
Ready to watch American Monster?
All seasons & episodes — free, HD, no signup.
▶ Watch American Monster FreeSimilar Shows
Dateline
1992 ★ 6.5
The Hillside Strangler: Devil in Disguise
2022 ★ 6.0
Interview With a Killer
2024
Unsolved Mysteries
1988 ★ 7.7
Thriller
1973 ★ 7.0
Antigang
2023 ★ 8.0
The Family
2019 ★ 6.7
Chasing the Moon
2019 ★ 8.3
Killing Grounds: The Gilgo Beach Murders
2026 ★ 6.8
Slasher: Flesh & Blood
2021
Slasher: Ripper
2023 ★ 7.0
John Lennon: Murder Without a Trial
2023 ★ 7.2
Nightline
1980 ★ 5.6
Murder in Mind
2001 ★ 8.3
You May Also Like
Snapped
2004 ★ 7.8
People Magazine Investigates
2016 ★ 8.6
Fear Thy Neighbor
2014 ★ 8.0
Forensic Files
1996 ★ 7.9
Cold Case Files
1999 ★ 8.5
History's Greatest Mysteries
2020 ★ 7.7
American Masters
1986 ★ 7.0
Disney Gallery / Star Wars: The Mandalorian
2020 ★ 7.4
WWE: Unreal
2025 ★ 7.9
Paranormal Witness
2011 ★ 7.5
Mysteries at the Museum
2010 ★ 8.8
Making a Murderer
2015 ★ 7.8
The UnXplained
2019 ★ 6.7
The Civil War
1990 ★ 7.9
More Crime Series
Reacher
2022 ★ 8.1
The Mentalist
2008 ★ 8.4
Law & Order: Special Victims Unit
1999 ★ 8.0
The Rookie
2018 ★ 8.5
NCIS
2003 ★ 7.6
Law & Order
1990 ★ 7.3
Criminal Minds
2005 ★ 8.3
The Gentlemen
2024 ★ 7.8
Midsomer Murders
1997 ★ 7.5
CSI: Crime Scene Investigation
2000 ★ 7.6
Breaking Bad
2008 ★ 9.0
Dexter
2006 ★ 8.2
Bones
2005 ★ 8.2
S.W.A.T.
2017 ★ 8.0
Trending Now
Silo
2023 ★ 8.2
Bleach
2004 ★ 8.4
A Tale of Two Cities
2026 ★ 10.0
Lanterns
2026 ★ 8.3
The Grand Tour
2026 ★ 9.6
Lioness
2023 ★ 8.1
One Piece
1999 ★ 8.7
Dark Matter
2024 ★ 7.8
Furious
2026 ★ 7.2
Mushoku Tensei: Jobless Reincarnation
2021 ★ 8.4
The Long Watch
2026
Chad Powers
2025 ★ 8.0
Ted Lasso
2020 ★ 8.4
The Simpsons
1989 ★ 8.0
Popular This Week
Watch What Happens Live with Andy Cohen
2009 ★ 4.9
Coronation Street
1960 ★ 5.4
Home Alone
2013 ★ 7.5
The Tonight Show Starring Jimmy Fallon
2014 ★ 5.8
The Late Show with Stephen Colbert
2015 ★ 6.1
El conquistador
2005 ★ 5.7
The Tonight Show Starring Johnny Carson
1962 ★ 7.5
Tagesschau
1952 ★ 6.8
Game of Thrones
2011 ★ 8.5
Sesame Street
1969 ★ 7.1
American Dad!
2005 ★ 7.0
Explore related titles
Frequently Asked Questions
Where can I watch American Monster online for free?
You can watch every season and episode of American Monster online for free in HD on FreeFlix. No signup required.
How many seasons of American Monster are there?
American Monster has 13 seasons and 130 episodes, all available on FreeFlix.
Is American Monster available in HD?
Yes, all episodes of American Monster stream in HD with multiple backup sources.
Do I need an account or subscription?
No. FreeFlix is 100% free with no registration, payment, or account required.