The Naked City portrays the police investigation that follows the murder of a young model. A veteran cop is placed in charge of the case and he sets about, with the help of other beat cops and detectives, finding the girl's killer.

Two hit men walk into a diner asking for a man called "the Swede". When the killers find the Swede, he's expecting them and doesn't put up a fight. Since the Swede had a life insurance policy, an investigator, on a hunch, decides to look into the murder. As the Swede's past is laid bare, it comes to light that he was in love with a beautiful woman who may have lured him into pulling off a bank robbery overseen by another man.