Terrified (1963)

aka: Terrified!

A series of murders, committed by a hooded man, occur in a ghost town. Marge (Tracy Olsen), a young waitress whose brother Joey was driven mad by the killer, goes with her student friends Ken (Rod Lauren) and David (Steve Drexel) to the ghost town to help solve the crimes. Also with Denver Pyle (aka: Uncle Jesse in The Dukes Of Hazzard).