On a wet Saturday, Mr. Princey learns that his unbalanced daughter Millicent has hit and killed the man with whom she was obsessed, but did not love her, with a croquet mallet. Mr. Princey cannot afford a scandal at any cost. When a family friend comes visiting Princey gets his dim son George to attack him, with a view to making it look as though the murder was a case of self-defence. Never has family solidarity been so important. Nothing must go wrong. Will it?
