During their belated honeymoon, Mu Sisi and her husband accidentally trigger a soul-swapping ritual by a secret organization. Trapped in her husband’s body, Mu Sisi discovers he’s a secret agent and joins forces with his partner to rescue him, uncovering a dangerous world of espionage and dark rituals.

During the Republican era Pan Shizue, young lady from rich family,, is haunted by a demon and has no choice but to invite Taoist master to perform a practice to drive away the fox demon and cheat the fox demon by matching a paper man with a fake marriage. After the marriage with Pan Shizue her fake groom Zhang Shaofeng commits adultery and is caught in a hurry, he hides in a magic house and accidentally unseals monster