Anran and Yongyuan meet in 1982, when Anran transfers to Yongyuan's school. She is wealthier than her classmates who approach her with suspicion. The school bully assigns Yongyuan to follow Anran, which is a role that he happily accepts for the next 20 years. One sign of his devotion is that he can always recognise her footsteps.

Anran and Yongyuan bond as they share the common tragedy of losing their mother in the same earthquake. However, their mothers come from different backgrounds, as Yougyuan's was a peasant and Anran was a doctor. Yongyuan's guardian dies and his uncle takes him away. He's not allowed to say goodbye to Anran, a pattern that recurs as one or the other repeatedly vanishes.

Directed by: Snow Zou
Screenplay by: Snow Zou
Produced by: Zhang Yibai
Starring: Nicholas Tse, Gao Yuanyuan
Production companies: Emperor Motion Pictures, Wanda Pictures, Dadi Century Film (Beijing) Co Ltd
Release dates: 4 September 2014 (Hong Kong), 5 September 2014 (China)
Running time: 106 minutes
Countries: China, Hong Kong
Language: Mandarin
Box office: US$36,590,000