Impulse is a 1972 American horror thriller feature film about a gigolo who is also a serial killer of wealthy widows.
Directed by William Grefé (Mako: The Jaws of Death; Stanley; Death Curse of Tartu; Sting of Death) from a screenplay written by Tony Crechales (The Attic; The Killing Kind; House of Terror; Point of Terror), the Conquerer Films production stars William Shatner, Ruth Roman, Kim Nicholas, Jennifer Bishop and Harold Sakata.