A story that follows a detective in the major crimes division of the Nan Xing City Police Department. Together with a woman who has super memory, he upholds the law one case at a time in solving murders and burglaries and bringing down a narcotics manufacturing facility. Jing Chu is a young and capable detective. Due to his repeated merits from cracking big cases, he is promoted to the position of major crimes division vice-captain at Nan Xing City and starts to work alongside his new team. Because of a murder case, he meets Yang Mian Mian, a young woman who possesses a photographic memory. He soon realizes that Mian Mian seems to have a deep connection to his father's mysterious death many years ago. Meanwhile, a famous blogger and a member of an idol girl group die consecutively. Their cause of death is identified to be due to a medical substance. As the major crimes division launched their investigation, they uncovered a dangerous conspiracy that could threaten their own lives. (Source: ChineseDrama.info)