As the residents of the Pi Kappa Sigma sorority house prepare for the festive season, a stranger begins to harass them with a series of obscene phone calls.
| Genre | : Kengerian, Misteri, Kejahatan |
| Sutradara | : Bob Clark |
| Pemeran | : Olivia Hussey, Keir Dullea, Margot Kidder, John Saxon, Marian Waldman, Andrea Martin |
| Rilis Resmi | : 01 January 1974 |