Who Killed Teddy Bear (1965)

Director: Joseph Cates
Cast: Daniel J. Travanti, Diana Moore, Elaine Stritch, Frank Campanella, Jan Murray, Juliet Prowse, Margot Bennett, Sal Mineo

Synopsis:

A grim police detective embarks on a one-man crusade to track down a depraved sex maniac when a nightclub deejay receives a disturbing series of obscene phone calls. Finding himself getting far too close to the victim for comfort, the hard-boiled cop must track down the unbalanced pervert before he can carry out his sick threats…