chunk: On the Friday night after Thanksgiving, Ben and Elena have an argument when she learns of his affair with Janie, but they go ahead with their plans to attend a neighborhood party, which turns out to be a key party", where married couples swap sexual partners by having wives select other husbands' keys from a bowl; Jim and Jamie are also there. As the party progresses, Ben becomes drunk. When Janey chooses the keys of a handsome young man, Ben attempts to protest but trips and knocks his head on the coffee table, leading Jim to realize that his wife and Ben are having an affair. Ben, in his embarrassment, retreats to the bathroom where he remains for the rest of the evening. The remaining key party participants are paired off and leave together with only Jim and Elena remaining. She retrieves Jim's keys from the bowl and returns them to him. After debating the issue, Jim and Elena leave together, engaging in a quick, clumsy sexual encounter in the front seat of Jim's car. Jim,