A story of reunion, love, and mutual redemption. “They came to see me. The secret from back then has already been uncovered. To save one, you must kill the other.” A letter from the long-lost caretaker of the orphanage pulls Li Zhilin back into the nightmare of her childhood. Soon after, at the caretaker's funeral, Zhilin reunites with her childhood friends—Zhan Zeyu and Tao Ye. The three move into Tao Ye’s villa, each quietly testing the sincerity of the others. But who is the one that must die, and who is the one to be saved? What is Zhilin’s true connection to it all? And who was that boy who once stirred his heart, now only a blurred figure in her memory?