At the last second before he died of illness, Chen Jianguo, an educated youth in his seventies, had his soul pass into the body of a 25-year-old deliveryman, and was trapped on the same day - July 7th, a heavy rainstorm. The end of each cycle is the cold corpse of Lin Xiaoyu, an old man living alone. In order to break the cycle of reincarnation, he rode an electric bicycle through the lower floors of the city, and pieced together the truth from a takeout order, half an old photo, and a yellowed diary: the old man who had been waiting for fifty years was the lover he had missed. When the young body carries the vicissitudes of the soul, he will use every opportunity to come back and send an apology and confession half a century late before death comes. Time can go around, but love cannot come back. But this time, he decided not to let go.
