Bella (Kristen Stewart)'s 18th birthday is here, and her father gave her a gift. Edward (Robert Pattinson) showed his love generously and told her the legend of the Italian vampire royal family. Edward's red-haired sister Alice (Ashley Greene) specially held a birthday party for Bella. During the party, Bella accidentally scratched her arm and was attacked by Gaspar. She escaped with Edward's protection. However, Edward gradually alienated Bella and proposed a breakup. This chilled Bella, but Edward also had his own difficulties and still protected Bella in secret. Bella was in a window period, and her old friend Jacob (Taylor Lautner) showed concern for her, and their relationship warmed up. After that, Bella was rescued because of jumping off a cliff, and she learned that Jacob was a werewolf who specialized in dealing with vampires. At the same time, Edward, who was unaware of the situation, thought Bella committed suicide, and was downhearted. He came to Italy to ask the royal family to end his life... This film is based on the best-selling novel "The Twilight Saga: New Moon" by American female writer Stephanie Meyer.