Doctor Lu Jiushu failed to save the patient Bai Lu due to an accident. At a certain time, he discovered that every time Bai Lu died, he would start to cycle. After several times, he finally understood that as long as he did not save Bai Lu, the cycle would continue until he rescued her.
Lu Jiushu was confused and desperate during this process. He tried his best but could not find an exit. Until the end of the time intersection, the fog cleared and he finally recovered his lost memory.