Ricky is released from a mental hospital, taking with him the memory of his brother Billy's death and embarking on a journey of relentless revenge.

Conniving and duplicitous tramp Susan tries to have her older sister Molly killed so she can have Molly's hunky husband Jeff all to herself. Things go awry when hired assassin John bumps off Susan instead. But Susan's pesky evil spirit returns from the grave to haunt Molly and Jeff.