It is the life's mission of Pongo Twistleton's Uncle Fred—Frederick Altamont Cornwallis, 5th Earl of Ickenham—to spread sweetness and light, and set right life's inequities, by every means possible. At present Uncle Fred's cheerful intentions are set on correcting Pongo's mistaken engagement to Hermione Bostock, loved by Bill Oakshot, Pongo's childhood pal. Sally Painter, once engaged to Pongo, loves him still, and would obviously be the better match for him. It's a simple matter of rearranging Pongo's matrimonial intentions, by hook or crook. For a skilled impersonator like Uncle Fred, this should pose no problem. . .