My Dear Detective

Ten years ago, a massacre took place at an orphanage. Ning Sisi, one of the survivors, was adopted by a married couple who were professors of criminal psychology.

Ten years later, on the day Ning Sisi returned to China, she received a mysterious letter addressed to Ning Sitian.

To uncover the truth, Ning Sisi gets caught up in a murder case and meets the brilliant detective Xiao Yihan.

Behind a string of cases lies a secret that has remained unknown for ten years.