You Ming Xu, a female detective from Jiangrong City, goes deep into western Sichuan to investigate a serial murder case. She meets Yin Feng, a criminal psychology professor who was injured and had amnesia, and the two form a crime-solving partnership.
Yin Feng, with his lost memory, is returned to boyhood, innocent and enthusiastic. He walks into You Ming Xu's heart, closed due to the loss of her mother at a young age. Yin Feng excels as a criminal psychological analyst, while You Ming Xu relies on many years of case-handling experience and keen intuition to solve cases.
