Divorced mother has problems with her young son, who keeps shoplifting and getting into trouble, won't study, is generally unhappy, so society provides a solution by presenting a "big brother", a sort of adopted companion for the boy, he is totally out of place, a vaudeville comedian who at first stuns the mother and boy by his jerky manners, but gradually the boy accepts him, he gets astonishing results at school, and also the mother becomes fond of him, too fond, and there the problems start. They don't get any better by the real father coming home for one of his surprise visits, just coming and leaving, there are some settlements bordering on rows, but on the whole this is a uniquely charming and delightful comedy, all about relationships how they work and don't work, how to get along and not get along, and anyone could enjoy it and learn from it, and come out a better person afterwards.