George Cole poses as a Butler to thwart the evil plans of two sons to kill their mother and steal her money. Unfortunately for them, their mother leaves all her wealth to dear old George, who raps about the whole scenario for our amusement. This is quite a sordid advert for a building society, completely glossing over the fact that two sons have just murdered their mother. I get the implication, but I think it's a bit strange, don't you?