An action-packed double. In 'The Exterminator' Vietnam veteran John Eastland (Robert Ginty) turns urban vigilante, when his friend is paralysed in a gang attack. He becomes a hero to the public with his no-nonsense approach to law enforcement, but the police believe him to be an unstable psychopath, capable of untold murder and mayhem. In 'Maniac Cop' New York City is being terrorised by a psychopathic killer in a police uniform. The prime suspect is Jack Forrest (Bruce Campbell), a young policeman who has been framed by the real killer. With the help of his vice cop lover Teresa (Laurene Landon), Jack tries to clear his name. Meanwhile, Detective Frank McRea (Tom Atkins) is hot on the heels of the killer, but may not live to bring his shocking discoveries to light.