An evil alien brain, bent on world domination, takes over the body of an atomic scientist, while a "good" alien brain inhabits the body of the scientist's dog and waits for an opportunity to defeat the evil brain.
The Hidden
1987
6.9/10
Scanners
1981
6.7/10
Invasion of the Body Snatchers
1956
7.5/10
Subservience
2024
6.6/10
Impostor
2001
6.1/10
The Creeping Flesh
1973
5.9/10
Splinter
2008
6.2/10
Alien: Covenant
2017
6.2/10
The Host
2013
6.3/10
The Thing
2011
6.2/10
Elevation
2024
6.4/10
Alien: Romulus
2024
7.2/10
Self/less
2015
6.4/10
Man-Made Monster
1941
6.1/10
Species
1995
6.0/10
Event Horizon
1997
6.6/10
Margaux
2022
6.0/10
Worldbreaker
2025
5.9/10
The Signal
2007
5.9/10
Upgrade
2018
7.5/10
K-PAX
2001
7.205/10
