Lin, a woman trapped by family and career woes, suddenly encounters her first love when exiting the elevator one afternoon. But her first love appears exactly as he did 20 years ago, still a teenager. Baffled, Lin approaches him and finds herself pouring out everything to him. Disregarding the driver waiting for her, Lin and the youth walk circles around the building, even discovering an empty floor.
Is this a dream? Or a cruel joke? When Lin finds a student ID in the youth’s backpack, the course of events begins to spiral out of control…
Directed by Zhang Chi (China)