The Perfect Killer
Betrayed by his girl and best friend, thief Harry Chapman (Lee Van Cleef) takes the fall for a racetrack robbery. While in prison, he is offered a chance to participate in an escape plan. What he doesn't know is that once he is on the outside, the group responsible for the prison break has Harry in their debt and they use him as a hit-man. Naturally, he grows tired of the job and splits because he is hellbent on getting revenge on the former partners. So the mob puts young hit-man Luc (Robert Widmark) on Harry's trail.
Starring Lee Van Cleef, John Ireland, Carmen G. Cervera, Alberto Dell'Acqua, Karin Well, Fernando Sancho, Aldo Bufi Landi, Diana Polakov, Paolo de Manincor, Fabián López Tapia
Watch "The Perfect Killer" on Amazon released in 1977. It's a crime and action & adventure movie, and has a rating of 4.7 out of 10 from Imdb which is fairly low for this kind of movie, and is currently only available for purchase or rent.