In the hustle and bustle of the modern city, Su Wei, an art curator who appears gentle and introverted but is actually intelligent and keen, falls in love with her boyfriend Lu Zhiyan fatefully. He is both her beloved lover and the unraveling mystery of her time loop. This sadomasochistic relationship revealed his shocking secret of being an undercover Interpol agent through repeated restarts. When the truth approaches - the only way to save him is to end love with her own hands, she will struggle painfully between emotional tearing and rational choices. In the end, she and he co-wrote the shocking ending chapter, a modern fantasy romance story about love, sacrifice and rebirth, which is about to be movingly staged.