Troy Kotsur, Jess Alexander, Zhiwen Wang, Naiwen Li, Johnny Sequoyah, Wu Jiang,
Linshan Zhao, Johannes Roberts,
Set against the backdrop of the bacterial experiments conducted by the Japanese Imperial Army's Unit 731 in Northeast China, and reveals the crimes of Unit 731 through the turbulent fate of an ordinary individual.
In her teenage years, Qian Yiehong rejected a boy out of political differences. He hit her back with a brick, and since then her back has hurt whenever it rains. Some time later, she falls in love with a married man.
A woman, He Sizhu, and her lover, Chen Mo, are in a car accident. When she wakes up at the hospital where her husband is a surgeon, she has forgotten everything. Her lover has become a stranger, but he wants her back.