Jerry Sloan is a successful writer of advertising jingles married to an equally successful lawyer. Living with the happy couple is the not so happy Abe Dreyfus, Jerry's curmudgeon of a father-in-law. Abe is a funny guy to everyone but Jerry. The situation is exacerbated when Jerry's mother Mildred looses her house in a fire and needs a place to stay. Abe and Mildred can't stand each other. One hilarious confrontation after another brings us to a heart warming finale in which the oldsters discover that, really, each is not so bad.