In a hospital near the seaside, there lives a helpless middle-aged man named Jin Minhao (played by Qian Haozhen). Because the left half of his body has lost consciousness and his brain nerves are damaged, he wants to end this miserable life all the time. On this day, the hospital sent another patient who had no relatives. His name was Park Sanghua (played by Liu Haizhen). He lost his memory due to brain damage and was arranged in the same intensive care unit with Jin. Park's arrival aroused infinite waves in Jin Minhao's heart. The two men seemed to have had infinite hatred and ties, causing Jin to try every means to kill him, and Park, who gradually recovered his memory, also poured the same hatred on Jin Minhao. At the same time, the mysterious Dr. Bai, contrary to his usual practice, gave special care to the two men and used incredible treatments to help them recover. Behind all this, there seems to be a bigger mystery hidden...