An inverted wall clock drags Su Wanxing, an educated youth back to the city, back to 1975. With the secrets in the mysterious tin box - the wine map and the old photos of the strange woman, she is determined to rewrite the calculated past life.
Faced with the pressure of rising rents and the unpredictability of people, she took advantage of the gap in the times to enter the business road, from exchanging tickets on the black market to revitalizing the resources of the supply and marketing cooperative, step by step. But with the emergence of the hidden wine, the mystery of "Plum", the abnormal movement of the tin box, and the purpose of the mysterious salesman Chen Mo all make this rebirth not simple.
This time, she has to earn a living, solve the mystery, and create her own "prosperous" life in the 1970s.
