"A MYSTERY KILLER STRIKES... and a beautiful blonde pays the penalty for knowing too much... Was she a modern Mata Hari?"
A young soldier uncovers a ring of spies when he investigates his brother's mysterious murder.
Joseph H. LewisDirector
Greg Carroll
Sgt. Paul
Lt. John Harmon
Linda
Alma Barton
Sgt. Blake
Wallace
Carl Flegler
Harold
Elevator Operator
Agent Martin
Sam Dillingham
Pvt. Norton
Capt. Bryant
Col. Longstreet
Prof. Carroll
Stanley Hume - 5th Columnist
Mamie
Capt. Gray
