In this entry in the long-running "Bowery Boys" series, Slip Mahoney and his boys witness a murder, but cannot identify the killer. Upon seeing the victim in the newspaper, Slip and Sach head for the morgue and launch their own investigation. There they meet the victim's daughter; she owns the hotel where the boys witnessed the crime. To help them work undercover, she hires them on as bell boys. Later, a gangster mistakes Sach for someone else and gives him some valuable information about the murder which he immediately passes on to his policeman friend. Unfortunately, the policeman has been suspended for neglecting his daily duties. Fortunately, the Boys still manage to solve the murder, but not before embarking upon a crazy chase through a laundry chute.