Ellen Andrews (Barbara Harris) and her teenage daughter, Annabel (Jodie Foster), can barely stand each other. Ellen thinks her daughter is an incorrigible rebel, and Annabel thinks her mother is wound tighter than a spool of thread. But one fateful and freaky Friday the 13th, they discover what it's like to be in each other's shoes when their souls are switched. John Astin co-stars as Annabel's dad and Marc McClure plays her crush, Boris.