An engineer's wife returns home with a lost teenager. A man posing as her dad tries to get her back, causing the engineer to recall his youth as a revolutionary, obscured by dreamlike disruptions of time and space, fantasy and reality.
Sachiko has just committed a crime. She is helped by a couple to whom she grants her confidence. Quickly this couple blackmails her and threatens to deliver her to the police. Sachiko has no other choice but to obey them.
A couple embarks on a journey home for Chinese new year along with 130 million other migrant workers, to reunite with their children and struggle for a future. Their unseen story plays out as China soars towards being a world superpower.