Psychological profiler Chen Yuran lost control. After the serial killer "Painter" whom he personally sent to prison escaped from prison, he was the first to find his sister Yang Xinxi, who suffered from emotional disorders. In order to protect his sister, he had to live with this girl who could see through all lies and had a special dependence on him. When the boundaries between healing and loss of control begin to blur, and the bloodstains of old cases are not yet dry, a new killing game has quietly begun.
