A beautiful, brassy young woman (Jane Fonda) returns from school to her father's ranch where he is soon murdered by an assassin (Lee Marvin) sent by a development corporation. With the help of two con men she acquainted on the train home and her father's ranch hand, they contract a once great sharpshooter but now hopeless drunk (Marvin, again) to seek revenge on the responsible parties. "Cat Ballou" is a fun but slight and silly Western with Fonda appearing as beautiful as ever and Marvin turning in solid dual performances which won him, somewhat bafflingly, the Lead Actor Oscar.