Qingyao woke up in the old house at midnight and found that she was trapped in two completely different time and space: on one side was the dark mansion during the Republic of China, and on the other side was the cold apartment in the modern city. Whenever the bell rings, her soul reincarnates in the two worlds, witnessing herself with different identities entangled with the same mysterious man. As time and space intersect, Qingyao gradually realizes that there is a secret oath hidden in the mansion. Only by finding the truth about each other can they escape from the eternal reincarnation. She must choose between the treacherous mystery and the approaching death to uncover the love and hatred that spans hundreds of years - and every choice she makes may cause her soul to be lost in the darkness forever. The rift in time and space, the recurring death, the confusion of identity and the struggle for true love make Qingyao's story like a never-ending suspenseful nightmare, burning in fear and longing.
