A mother-in-law stages scenarios where she appears to drown to test how much her three son-in-laws love her. The first two son-in-laws jump in to save her, and each finds a new car in front of their house the next day with a thank you note from the mother-in-law. The third son-in-law watches as she drowns, thinking he has waited a long time for this, and the next day finds a new Porsche with a thank you note from his grateful father-in-law.