"Superb 1957 film noir starring Tony Curtis. When catholic priest, Father Tomasino is brutally stabbed to death in an alleyway, San Francisco traffic cop, Joe Martini (Tony Curtis), vows to help catch his murderer because the priest had been like a father to him. But when the homicide detective in charge of the case, Lieutenant Kilrain (Ted de Corsia), refuses to let him interfere on their turf, Martini turns in his badge in order to hunt down the killer on his own. He follows a hunch that restaurant owner Sylvio (Gilbert Roland) could be involved and decides to hide his previous life as a cop in order to become friendly with his suspect s family. But as Martini starts to unravel the truth behind Father Tomasino s murder, he realises he is falling in love with a the suspect s cousin, (Marisa Pavan) and Martini s world is torn apart by old and new loyalties..."