Repulsion (1965). A mentally unstable sexually-confused but charming young girl relies on her older sister to live and pay the monthly rent. What happens when the older sister has a new boyfriend and they go out of town to take a vacation together while the young girl is all alone? What happens when other men make a pass at this young, sexy but unhinged girl? What will her sister and her sister's boyfriend do when they get back to find a life that has flipped upside down?