A young Dominican-American man named Yunior cheats on his girlfriend, Magda, with a woman named Cassandra. Magda finds out when Cassandra sends her a tell-all letter. Magda is angry, but Yunior convinces her to continue dating him. However, their relationship isn't the same after. She prioritizes her girlfriends over him and sometimes avoids making plans with him. As she grows more and more distant, Yunior pressures her into coming to visit the Dominican Republic with him as they had planned before things went bad. On the trip, they stay at Yunior's uncle's house. Magda is upset and doesn't want to be there. She convinces Yunior to skip to the beach resort part of their vacation. She often rejects his sexual advances and says she feels pressured by him. She asks for them to sometimes spend time apart. After Yunior gets angry at a man who flirts with her on the beach, she decides to take some alone time. Yunior goes to the local bar, flirts with a girl, and meets a Vice-President and his bodyguard. The next day, the resort throws a party. The two dress up, and then Magda says that she will need space that night. Yunior is angry. He runs into the Vice-President and his bodyguard at the club and they go for a drive. They hold him over a hole to a cavern to see inside. Yunior cries about Magda. When he gets back to the hotel room, Magda has been crying and has her suitcase packed and announces that she wants to go home the next day. Five months later, he receives a letter from her. They're both dating new people.