Complex sentence: Millionaire Sam Stone (Danny DeVito) intends to murder his hated wife Barbara (Bette Midler) to gain control of her $15 million family fortune and run off with his mistress Carol (Anita Morris).
Split into simpler sentences: Millionaire Sam Stone (Danny DeVito) hates wife Barbara (Bette Midler). He plans on murdering her to gain control of her $15 million family fortune and run off with his mistress Carol (Anita Morris).