Stalker crime thriller with Sal Mineo as a disturbed busboy fixating on nightclub hostess Juliet Prowse. Set in mid 1960s Manhattan, nightclub worker Nora (Prowse) starts to receive obscene phone calls. Initially deciding to dismiss them, Nora's concerns grow when she meets sex-crime obsessed police lieutenant Bill Madden (Jan Murray), who has a personal axe to grind, as his wife was assaulted and murdered by a stalker. As the calls become more personal, including details of events inside her own flat, Nora tries to carry on her normal life, seeking help from her boss Marian (Elaine Stritch). But when Marian is murdered outside Nora's flat wearing her coat, Nora finally realises she needs protection. As Madden begins to put to put the pieces together, it becomes a race against time to trap the stalker before he adds Nora to his list of victims.