Diego had to leave his hometown in Brazil to attend a film school in California for 4 years. He also had to leave everything he had ever loved behind including Matheus, a handsome young man with whom he felt in love and shared passionate moments with. Ten years later, back in Brazil, he decides to make a film about their relationship. This biopic shows how passion can increase people's motivation in life, but also shows how making choices can be cruel for passion.
贝拉（克里斯汀•斯图尔特 Kristen Stewart 饰）的18岁生日到了，父亲送了她礼物。爱德华（罗伯特•帕丁森 Robert Pattinson 饰）大方示爱，并为她讲述了意大利吸血鬼王族的传奇。爱德华的红发妹妹爱丽丝（阿什丽•格林尼 Ashley Greene 饰）特意为贝拉举办的生日派对,期间,贝拉无意中划伤了手臂，遭到加斯帕的袭击，靠着爱德华的庇护，才逃过一劫。不过，此后，爱德华逐渐疏远贝拉，并提出了分手。这令贝拉心寒，但爱德华也有苦衷，仍在暗中保护贝拉。贝拉处于空窗期，昔日老友雅各布（泰勒•洛特 Taylor Lautner 饰）嘘寒问暖，两人的关系也由此升温。此后,贝拉因为跳崖获救,才得知雅各布是狼人,专门对付吸血鬼。与此同时，不知情的爱德华以为贝拉自杀，心灰意冷，来到意大利请求王族结束自己的生命…… 本片根据美国女作家斯蒂芬妮•梅尔（Stephanie Meyer）的畅销小说《暮光之城：新月》改编。
