New York police detective Mark Dixon is demoted by Inspector Foley because of his frequent use of violence that echoes his father's criminal past. At a hotel, gangster Tommy Scalise's
floating crap game becomes the scene of a visiting Texas tycoon's murder. Police are summoned, including Dixon, who had arrested Scalise years earlier for murder, although Scalise was acquitted. Interrogation yields information that newspaper columnist Ken Paine and model Morgan Taylor had left the game early. Dixon questions Paine, who is drunk and belligerent, and strikes him with a fatal blow. Dixon attempts to conceal the murder, laying a false trail suggesting that Paine had left town. Dixon barely avoids being seen by Taylor's father, cab driver Jiggs Taylor. Dixon dumps Paine's corpse in the river, but the body is soon discovered. To cover himself, Dixon suggests that Scalise murdered Paine as well as the tycoon. As the case develops, detectives talk to Morgan and Jiggs. Morgan was Paine's estranged wife, and the night of the murder was the first time that she had seen him in months. Dixon insists that Scalise was the murderer, but Jiggs, who had previously threatened Paine, had been seen at Paine's apartment and is arrested. Dixon and Morgan have developed a mutual attraction, but he cannot bear to tell her the truth. He borrows money to hire a top lawyer for Jiggs, but the attorney refuses the case. Dixon brawls with Scalise's men and is beaten badly. When one of the men reports Dixon's violence to the police, Inspector Foley angrily scolds Dixon. Distraught, Dixon writes a confession letter addressed to Foley, to be opened if Dixon should die. Dixon arranges to meet with Scalise again, expecting to be murdered with Scalise held responsible. However, Scalise realizes Dixon's intentions and refuses to kill him, shooting him in the arm instead. One of Scalise's men arrives with news that police have learned the truth about the tycoon's murder from an informant. As the gang attempts escape in a
car elevator, Dixon delays them by stalling it until police arrive. At the police precinct, Foley commends Dixon and returns the unopened confession letter to him. Dixon tells Foley to open and read it. After reading the letter, Foley arrests Dixon. Morgan reads the letter, but her love for Dixon is undiminished and she confidently declares that he will not be punished for the accidental death. ==Cast==