He Knows You're Alone 1980
Directed by Armand Mastroianni | Starring: Don Scardino, Caitlin O'Heaney, Elizabeth Kemp, Tom Rolfing
A reluctant bride-to-be is stalked by a serial killer who only kills brides and the people around them. While her friends get whacked one by one, a hard-boiled renegade cop whose bride had been killed years before tries to hunt the killer down before it is too late.