In order to settle the karma of his past life, Wang Yao took a train north to Yandu and met his former wife Bai Yuwei on the train. After that, while working at the construction site, he entrusted private detective Chen Gang to investigate Bai Yuwei's past. At the same time, murders began to occur in the city. As the situation developed, everyone seemed to be trapped in the same whirlpool...
