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.

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Main Cast: Eric Linden, Ben Alexander, Donald Curtis, Ann Doran, Constance Worth, Weldon Heyburn, Earle Hodgins, I. Stanford Jolley, Emmett Vogan, Bill Cartledge

Director: Joseph H. Lewis

Writers: Edward Bennett, Arthur Hoerl

Editor: Howard Dillinger

Cinematographer: Arthur Martinelli

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