Ace crime reporter Watling tries to discover the identity of a notorious jewel thief, but his informant is murdered. At a house party, Watling helps detective Adam expose the criminal.

Ronald Howardas Det. Sgt. Fitzgerald
Mary Germaineas Kathleen Fraser
Jack Watlingas Frank Mitchell
Ronald Adamas Insp. Duggan
Gene Andersonas Renee Wexford
Peter Hammondas Andy Fraser
Graham Starkas Ginger
Edwin Richfieldas Bill Neilson
Alastair Hunteras Superintendent Carter