Slasher horror directed by William W. Lustig. With New York City being terrorised by a psychopathic killer in a police uniform the prime suspect is Officer Jack Forrest (Bruce Campbell), a young policeman framed by the real maniac cop. With the help of his lover and fellow officer Theresa Mallory (Laurene Landon), Jack tries to clear his name. Meanwhile, Detective Lieutenant Frank McCrae (Tom Atkins) is hot on the heels of the killer, but may not live long enough to bring his shocking discoveries to light...