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.
2017
1992
1997
1988
2004
1980
2009
2007
2005
2022
2008
2000
1981
2006
1995
1955
1985
1998
2002