Titre original : The World's Oldest Motive
Alex Marrow wishes to get rid of his wife Angela so that he can marry a beautiful young model Fiona McNiece. Alex, however, does not want a divorce because he does not want his wife to get her hands on his valuable stamp collection. He hires a hitman named Richard Schustak to kill his wife. Richard sets up Angela to die in an accident in her home. Alex, however, has second thoughts. He tells Richard to call the whole thing off. Richard will only do so for more money. Alex hands over the cash and Richard skips town with Fiona who is actually his girlfriend. It was all a con and Alex was the patsy.