On a rainy night seven years ago, Shen Ji jumped into the river, while Su Yan stood on the bank, smiling softly. No one knows what that smile means, and no one remembers why she jumped into the river. Seven years later, she is a psychological profiler and he is a forensic doctor. Fate drags the two of them back into that erased night. Lin Wantang hid the sealed files, Chen Huai kept her hairpin, Jiang Yansheng wrote about the dreams she had never experienced, and Zhou Yuan gently erased her memory. When the truth seeped into the bones like rain, she finally heard the echo of that night's laughter - not ridicule, but farewell.
