In the drama, Xiao Zhiyu and Hu Xiu are brought together by a Republic of China-themed murder mystery game. In the script world filled with falling snow and spies in the shadows, the two spark a fateful spark. An unexpected reunion in the real world reveals the mystery of each other's identities. The two shuttle between the misaligned time-spaces of reality and the script, and finally achieve two-way growth in the cross-dimensional bond, completing the transformation of love and self.This drama is adapted from the novel of the same name by Zule on Douban Reading.