The beautiful Huixiang (played by Shu Qi) and Huibao (played by Shu Qi) are twin sisters. The elder sister Huixiang is silent and virtuous. She lives with her blind mother (played by Xi Meijuan) by the sea and leads an ordinary life; the younger sister Huibao is playful and cute. After graduating from art school, she and her boyfriend Anan (played by Shawn Yue) have been rehearsing "The Legend of Red Plum" together. Due to illness, Huixiang took the stage instead of her sister and was recognized by the audience and colleagues. She and Anan were attracted to each other and fell in love with each other. This taboo relationship caused estrangement and suspicion between the sisters. After a rainy night, Huixiang disappeared, and Huibao's behavior became more and more strange. There seems to be a huge secret behind Huixiang's disappearance, and Anan and the sisters' mothers are increasingly unable to tell whether it is Huibao or Huixiang in front of them...