Carl Clausen

A small community is terrorized by an unknown serial killer, one "Mr. Zero," who has held the populace in thrall for several weeks. The mysterious murderer takes refuge in the storage area of a department store, where Linda Allen (Mary Brian) works as a store detective. When jewelry-department manager Tommy Braddock (Russell Hardie) is suspected of being Mr. Zero, Linda endeavors to clear his name, and in so doing follows the trail of clues to the real killer. (allrovi.com)