Jude Madigan abandons her husband Robert and her three sons without any explanation. Three years later Jude inexplicably returns to reunite her family. However Robert and his new lover Callie see Jude for the true psychopath she is and try their best to protect their sons. Jude embarks on a non stop stalking and harassment campaign against the family, and even seduces her eldest son Kess into committing her acts of violence.