A string of "Five Poison Money" from the Ming Dynasty became a passage spanning four hundred years. Lin Wan, a modern urban white-collar worker, develops dissociative symptoms due to work pressure and accidentally travels back to Shen Zhiqiu, a concubine of a Ming Dynasty merchant. From mutual exclusion to symbiosis, from strangers to confidants, the two found a way out of the difficulties of their respective times, and finally established a "twin" alliance that transcended time and space.
