Crime novelist Roger Blackwood competes with hotel house detective Andy McCabe in solving a murder by poisoning at a medical convention.
Crime novelist Roger Blackwood competes with hotel house detective Andy McCabe in solving a murder by poisoning at a medical convention.
Edmund Lowe , Victor McLaglen , Rosemary Ames
Ernest Palmer
Fox Film Corporation ,
as Roger Blackwood
as Andrew W. 'Andy' McCabe
as Eleanor Blake
