When the D.A. who sent her brother to the electric chair for a murder she knows he didn't commit turns up dead, Mary (Blanche Mehaffey) is the prime suspect. Can she and her playboy beau track down the real killer before it's too late? Taut "B" suspenser co-stars John Darrow, Raymond Hatton. 53 min. Standard; Soundtrack: English. Plays All Regions.