Brandon, a police lieutenant, has made it extremely unhealthy for Mulhall and his partner Letson to continue their gambling operations. They plan revenge. Mulhall hires Benny, a gangster, to "plant" his I.O.U. for $2,500 on the person of Brandon. At the gambler's trial, Mulhall accuses the policeman of raiding his place because he was unable to collect hush money. The I.O.U. is found in Brandon's hat and he is stripped of his authority and held for trial. Grant, police reporter on the Chronicle, suspects that Brandon is the victim of a frame-up and trails the gambler to his quarters. Climbing the dumbwaiter shaft, he overhears Mulhall outline a plot to his accomplice for enticing the disgraced lieutenant to that room and then confronting him with detectives. Myrta, the lieutenant's daughter, is also afraid that her father is the victim of a hoax and follows him when he starts to keep his appointment, dressed in boy's clothes. Mulhall decides to double-cross his partner and hires Benny the gangster to finish him while the policeman is in the room. How Grant at the risk of his life saves Myrta from mortal injury at the hands of the gangster and brings Mulhall, the plotter, to justice provides a thrilling climax.
—Moving Picture World synopsis