Michael Myers's little sister

Michael Myers murders his baby sitter, his older sister & their step father. The only survivors of the massacre are his two little sisters. Michale is sent to a mental institution and his little sisters are put into the foster care system. But what happens when Michael escapes? The voices inside his head tell him to kill all of his family if he ever truly wants to be free to follow the plans they have for him. Everyone that is except for his youngest sister. It seems the voices have a different plan in mind for her. They want her to suffer first. Will Michael seek out Catherine and kill her or will he allow her to live? And be as protective of her as he always has been?