On the night when her boyfriend Luo Fan disappeared, psychiatrist Su Mian received a butterfly-shaped silver bracelet engraved with "Remember in exchange for reunion". As weird pawn tickets from the "Time Pawn Shop" appeared one after another, she discovered that each victim had the same butterfly mark on the back of her neck, and Luo Fan's work badge was actually related to the unsolved case of her mother's death ten years ago. When the silver bracelet revealed the twin contract on the night of the blood moon, Su Mian was shocked to realize that she had already been written into the reincarnation of the pawn shop - those times pawned with sincerity will eventually weave the mystery of redemption between her and Luo Fan across life and death in the rift between yin and yang...
