He or She Who Disappeared?

Xiao Yueli and Li Qingli are an enviable urban elite couple. He is a talented architect and she is an independent art curator. The two are a perfect match in the eyes of outsiders, but they each hide their own secrets. The next morning after the engagement party, Xiao Yueli disappeared without warning. Only a scrawled note was left: "Don't look for me, forget me." The police investigation has reached a deadlock, and all clues point to Xiao Yueli possibly absconding with the money - there is indeed a huge gap in funds for the project he is responsible for. But Li Qingli refused to believe it all and decided to find the truth on her own. In the process of tracking clues, Li Qingli gradually discovered the unknown side behind Xiao Yueli: he frequently visited mental hospitals, met secretly with strange women, and had hundreds of photos of the same woman hidden in his computer. What's even more disturbing is that this woman looks strikingly similar to Li Qingli, but she is not her. When Li Qingli thought she was involved in a stand-in game, an even more shocking truth gradually emerged: Xiao Yueli had been secretly funding a rare disease research center, and the diseases studied were related to Li Qingli's inexplicable headaches and memory lapses in recent years. At the same time, Li Qingli began to receive anonymous letters, suggesting that Xiao Yueli's disappearance was related to her own past. She is forced to face a terrifying question: Who is she? Who is that woman who looks similar to her? Is Xiao Yueli protecting her or deceiving her? When the truth was finally revealed, Li Qingli found that she had to make a decision that could overturn both of their lives...