Fact1: pair of men subdue Jean Dexter by knocking her out with chloroform and drowning her in bathtub, Fact2: Homicide Detective Lt. Dan Muldoon and young associate are assigned to Jean 's case, Fact3: medical examination Jean 's case has determined was murder, Fact4: Back at police station Frank Niles claiming business relationship with Jean, Fact5: Jean 's parents Mr. and Batory arrive in New York to identify formally body
Output: In the late hours of a hot New York summer night, a pair of men subdue and kill Jean Dexter, an exmodel, by knocking her out with chloroform and drowning her in her bathtub. When one of the murderers, consciencestricken, gets drunk, the other kills him, then lifts his body into the air and throws it into the East River. Homicide Detective Lt. Dan Muldoon and his young associate, Det. Jimmy Halloran, are assigned to Jeans case, which the medical examination has determined was murder, not an accident. Muldoon has been a homicide cop for 22 years; Halloran for three months. At the scene, the police interrogate Martha Swenson, Jeans housekeeper, about Jeans friends, and she tells them about a Mr. Henderson. They also discover a bottle of sleeping pills and her address book. Halloran questions the doctor who prescribed the pills, Lawrence Stoneman, and Ruth Morrison, another model. Back at the police station, Muldoon questions Frank Niles, who lies about everything, claiming only a business relationship with Jean and denying knowing Ruth, to whom he is engaged. The police quickly discover the truth behind many of his lies. Later, Muldoon deduces from the bruises on Jeans neck that she was killed by at least two men. That evening, Jeans parents, Mr. and Mrs. Batory, from whom she had been estranged, arrive in New York to formally identify the body, and tell the detectives that they have no knowledge of Jeans acquaintances. The next morning, the detectives learn that Frank sold a gold cigarette case stolen from Stoneman, then purchased a oneway airline ticket to Mexico. They also discover that Jeans ring was stolen from the home of a wealthy Mrs. Hylton. At Mrs. Hyltons Park Avenue apartment, the police learn that the ring actually belonged to her daughter, who, to their surprise, turns out to be Ruth. Learning that Ruths engagement ring is also stolen property, Muldoon and Halloran take Ruth to Franks apartment, where they coincidentally interrupt someone trying to murder him. The killer takes a shot at the cops and escapes onto the nearby elevated train. When questioned about the stolen jewelry, Frank claims that they were all presents from Jean, which reveals his true relationship with her, much to Ruths chagrin. Frank is then arrested for the jewel thefts, but the murder case remains open. Halloran learns that a body recovered from the East River, that of Peter Backalis, a smalltime burglar, died within hours of the Dexter murder and connects the two incidents. Muldoon, although skeptical, lets him pursue the lead and assigns two veteran detectives on the squad to help Halloran with the legwork. Through further methodical but tedious investigation, Halloran discovers that Backalis accomplice on a jewelry store burglary was Willie Garzah, a former wrestler with a penchant for playing the harmonica. While Halloran and his team canvass the Lower East Side of New York using an old publicity photograph of Garzah, Muldoon compels Frank Niles to identify Jeans mystery boyfriend. Dr. Stoneman is Henderson. At Stonemans office, Muldoon uses Frank to trap the married physician into confessing that he fell in love with Jean, only to learn that she and Frank were using him in order to rob his society friends. Frank then confesses that Garzah killed Jean and Backalis. Halloran and Muldoon, using different approaches, have come up with the same killer. Meanwhile, Halloran finally locates Garzah and, pretending that Backalis is in the hospital, tries to trick Garzah to accompany him back to the hospital, but Garzah knowing he killed Backalis sees through the ruse. The exwrestler rabbit punches the rookie detective, momentarily knocking him unconscious. Garzah attempts to disappear in the crowded city, but as police descend upon the neighborhood, a panicked Garzah draws attention to himself when he shoots and kills a blind mans guide dog on the pedestrian walk of the Williamsburg Bridge. Garzah attempts to flee over the bridge but as police approach from both directions, he starts climbing one of the towers, and is shot and wounded. High on the tower, Garzah refuses to surrender, gunfire is exchanged, he is hit again and falls to his death. As aerial and street shots of New York are shown, the narration concludes with the iconic line: There are eight million stories in the naked city. This has been one of them.