On a rainy night, the richest man Lu Chen is deeply trapped in the grief of losing his wife and commercial encirclement. The assistant warns of the trap, but he insists on taking the risk to sign the contract. A mysterious girl Su Ranran comes uninvited, whose appearance is identical to his deceased wife Wen He. Su Ranran precisely replicates Wen He through habits learned from her diary—scallion-free plain noodles, a unique cup-holding style, and the humming of old love songs—causing Lu Chen to gradually waver in his probing. He suspects her identity, and even mistakenly takes her for the return of his deceased wife.