Copkiller (Italian: Copkiller (l'assassino dei poliziotti)), also released as Corrupt and The Order of Death, is a 1983 Italian crime thriller film directed by Roberto Faenza and starring Harvey Keitel and John Lydon, the lead singer for the bands Sex Pistols and Public Image Ltd. It is based on Hugh Fleetwood's novel The Order of Death, with a screenplay by Fleetwood, Faenza and Ennio de Concini. The music was composed by Ennio Morricone. The plot follows a psychological cat-and-mouse game between a corrupt police officer (Keitel) and a disturbed young man (Lydon) against the backdrop of a rash of serial killings,

Plot

Corrupt NYPD narcotics detectives Fred O'Connor and Bob Carvo have spent their illegal earnings on a Park Avenue apartment, viewing it as a sort of long-term investment. However, friction starts forming between them, as Carvo feels guilty about their scams and wants to abandon their association, asking O'Connor to pay him his share of the apartment so he can sell it, despite O'Connor's reluctance. Carvos's wife Lenore, a journalist critical of the police and a former fling of O'Connor's, begins to suspect her ex-partner's corruption, but is unable to prove it.