Grandpa discovers that the emerald ring Marilyn is wearing is the cursed Fregosi Emerald. He also discovers the curse can only be removed by a living member of the Fregosi family, the last of which lives in Detroit and runs Fregosi Motors.

Cast: Fred Gwynne, Yvonne De Carlo, Al Lewis, Pat Priest, Butch Patrick, Louise Glenn, Joan Swift, Marilyn Bell, Paul Reed