Early 80's TV movie about ghost of dead sister
Here's the jist of it. A family consisting of Mom, Dad, 2 sisters and 1 brother are in a station wagon driving along when something happens, car catches on fire, and everyone gets out except the oldest sister who was sleeping. Car explodes, sister dies. Time passes, and the ghost of sister starts to haunt the family. I remember the brother buys the farm and the little sister kills the father with a toaster in the bathtub saying "Daddy gets the big pieces, little pieces for Mommy and me." (She was talking about pizza slices.) In the end, I think only the Mother and little sister survive the ordeal. Any ideas?