In the future city of Xinhai, where memories can be read, repaired and even traded, Lin Mo, a top memory restorer, is obsessed with repairing other people's broken pasts all day long, but cannot piece together the only damaged memory left by his deceased wife. A mysterious commission broke his stagnant life. A powerful client asked him to completely delete a seemingly harmless memory in the rain. When Lin Mo dived into the core of this memory, he found that it was like a Pandora's box, pulling out a shocking conspiracy that could subvert the entire Xinhai City. At the boundary between reality and fiction, he must make a choice whether to protect his cherished private emotions or uncover the forgotten cruel truth.