Silent Night, Bloody Night (1974)
Director: Theodore Gershuny
Runtime: 81 min.
A maniac escapes a mental institution on Christmas Eve and begins to murder prominent townspeople as they attempt to sell an abandoned mansion.
Trivia: Mary Woronov is a cult-film star who appeared in films such as Death Race 2000 and Eating Raoul as well as the Institutionalized music video from the band Suicidal Tendancies.