Tony Curtis is a keen San Francisco cop ("Joe") who is convinced that the killer of a local priest is none other than local crab fisherman "Malatesta" (Gilbert Roland). There's no evidence, though, and that man has a fairly cast iron alibi. His boss "KIlrain" (Ted de Corsia) tells him to forget it but he can't, so he quits and with a bit of off-the-books help from his sergeant "Gillen" (Jay C. Flippen) he sets out to ingratiate himself with his suspect. Against all the odds, they actually start to bond, and after a short while the older man suggests that "Joe" moves into the family home where h... lees die res.