A mugger has the city by the throat, grabbing women's purses before slashing them on the cheek with a knife. But when victim number 12 turns up murdered, the police look to Pete Graham (Kent Smith), a psychiatrist and former cop, for help. Graham's hunt for the killer takes many unexpected twists, each one bringing him frighteningly closer to his own backyard. James Franciscus, Nan Martin and Stefan Schnabel co-star in this taut mystery tale.