The mother-in-law tests each of her three son-in-laws to see if they love or appreciate her by faking drowning in a river. The first two son-in-laws immediately rescue her, and each finds a new car in front of their house the next day with a thankful note. The third son-in-law lets her drown, thinking he has been waiting for this, and finds a high-end sports car with a note thanking him from a grateful father-in-law instead of mother-in-law.