Toxic waste dumping in a small Idaho town turns a young boy into horrible mutant monster. The town's police chief and a government scientist team up to stop the monster, which is quickly killing off the town's citizenry.
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Martin Landau as Garson Jones
Marianne Gordon as Laurie
Bill Osco as Detective Mortimer Lutz
José Ferrer as Mayor Gordon Lane
Dorothy Malone as Marge Smith
Ruth Buzzi as Virginia Lane
Murray Langston as Arn
Kinky Friedman as Willis
Johnny Dark as John
Kent Perkins as Officer Dudley
Roxanne Cybelle as Suzie
Jerry Maren as Monster
Richard Marcus as Joe the Lab Assistant
Robin Stille as Girl at Drive-In Theater (uncredited)