A mentally disturbed man stalks a woman who had once aborted the child he had fathered.
| Directing | Mark Robson | Director |
| Writing | Larry Cohen | Story |
| Writing | Larry Cohen | Screenplay |
| Writing | Lorenzo Semple Jr. | Screenplay |
| Production | Mark Robson | Producer |
| Sound | John Williams | Original Music Composer |
| Camera | Ernest Laszlo | Director of Photography |
| Editing | Dorothy Spencer | Editor |
| Costume & Make-Up | Joseph Dimmitt | Costumer |
