Alice's boyfriend Frank is a Scotland Yard detective who seems more interested in police work than in her. When she agrees to go out with another man, he attacks her and she defends herself and kills him. When the body is discovered, Frank is assigned to the case. He quickly discovers that Alice is the killer, but so has someone else, and they are threatening blackmail.
Detective Frank Webber
Mr. Crewe, The Artist
The Chief Inspector (sound version}
Ex-Det. Sergt. Bishop
The Detective Sergeant