After a doctor kills his mistress and himself while researching the mysterious previous owner of his Boston home, his colleague, Dr. Norman Boyle, takes over his studies and moves his family into the Boston mansion. Soon after, Boyle's young son Bob becomes plagued by visions of a young girl, who warns him of the danger within the house.
A precocious girl, her nasty parents, two punk-rock losers and a weak-kneed salesman inadvertently become the guests of two ghoulish senior citizens in their dark, haunted mansion.
A widower and two of his sons become infatuated by their beautiful housekeeper, and all three set out to seduce her using their own unique methods.
