I Love You, Alice B. Toklas

Attorney Harold Fine (Sellers) is forced into setting a date for marriage by his secretary/fiancée Joyce. At the funeral of his family's butcher he encounters his brother, a hippie living in Venice Beach. Herbie's girlfriend, an attractive flower power hippie girl named Nancy, takes a liking to Harold and makes him pot brownies. Not knowing what they are he eats them and feeds them to his father, mother, and fiancée.