The Hired Killer (1966)

Hit-man Clint Harris has one more job to do before he can retire. The corporation which hires him demands that Harris “erase” an ex-employee who has become a snitch for the police. At first Harris refuses but when his own brother is assassinated he accepts the job.
Franco Prosperi, Jeffrey Darcey, Hella Life
Robert Webber, Franco Nero, José Luis de Villalonga, Cec Linder, Theodora Bergery, Earl Hammond, Michel Bardinet, Giovanni Di Benedetto, Jeanne Valérie, Giovanni Cianfriglia, Valentino Macchi, Jacques Stany, Kitty Swan
tt0062347