Like The Prowler, Rogue Cop centers on a cop who thinks the surface of a nouveau riche lifestyle will insulate him from the sordid reality of police work--and who goes to great lengths to protect that dream. Robert Taylor is a cop on the syndicate payroll whose self image is challenged when he must avenge the murder of his brother, a rookie patrolman, at the hands of his own mobster-boss (George Raft).