Chu Yundai is a 21st century forensic doctor who has dissected 300 corpses and is known as the Living King of Hell. Once she traveled through time, she became the abandoned concubine who was poisoned to death in the general's palace. When she opened her eyes, she was lying in the coffin. Everyone was waiting for her to be buried, but she touched her neck, then her heart, then opened the coffin lid and sat up. Since God allowed her to live again, she would find out how the original owner died. But she didn't expect that every time she touched the body, she would see the memory of the last seven seconds before death. In the first case, she saw the murderer's hands. In the second case, she saw the murderer's face. In the third case, the person she saw was Pei Jin, King of Zhenbei. The King of Hell, who was said to have never flirted with women and killed without blinking an eye, was kneeling in front of a female corpse, crying like a child.