The narrator observes his wife kissing another man at their daughter's 15th birthday party. He considers confronting them or pretending not to have seen. He reflects on the costs of the party and how his daughter has grown up. He watches the teenage party guests misbehaving and taking drugs. He thinks back to his own teenage years and past suicidal incidents at parties. He interacts awkwardly with other guests and reflects on fantasies of living an alternate life across the street. He decides to buy music to lift his mood and looks forward to eating pastries in the morning.