He Knows You're Alone

He Knows You're Alone is a 1980 American slasher film directed by Armand Mastroianni, written by Scott Parker, and starring Caitlin O'Heaney, Don Scardino, Elizabeth Kemp, Tom Rolfing, and Tom Hanks in his feature film debut. The plot follows a soon-to-be bride who is stalked by a killer the weekend before her wedding.