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.

Plot

In a remote house, an abusive mother locks her young son in a closet, then goes into another room to meet the man she is cheating on her husband with. The man and woman intend to abandon their respective spouses, but their plans are cut short when an unseen killer appears and murders them with a sledgehammer. The bodies are found by the authorities, with the boy presumed dead.