download Sledgehammer movie 1983 mp4 720p Filmyzilla, Sledgehammer is a 1983 independent slasher film written and directed by David A. Prior. The film tells the story of a young boy who murdered his mother and her lover with a sledgehammer. Ten years after the murder and the child's mysterious disappearance, a group of teens stay in the house for a weekend when they are terrorized by the ghost of the little boy.