Complex sentence: Lucy begins playing the vamp and makes passes at her daughter's fiance Michael Fields (John Anthony Hayes) and then shocks his parents (Howard St. John and Edith Atwater) with a tantrum when they consider their son's marriage to Carol out of the question.
Split into simpler sentences: Lucy begins playing the vamp and makes passes at her daughter's fiance Michael Fields. She then shocks his parents with a tantrum when they consider their son's marriage to Carol out of the question.