Question: Silent Night, Deadly Night is a 1984 American slasher film directed by Charles E. Sellier, Jr., and starring which American actress and singer best known for her performance in the stage and film versions of "Godspell" in the early 1970s?
Sentence (from "Silent Night, Deadly Night"): Set during Christmas, the story concerns a young man, Billy, who suffers from posttraumatic stress over witnessing his parents' Christmas Eve murder and his subsequent upbringing in an abusive Catholic orphanage.
Relevant evidence: No