Shanghai French Concession background story took place in the period of the Republic of China, Ethan Ruan plays detective fan as a ground assignment, secrets protection rich girl Song Xiaoqiao (Yang Zishan decorated) with the rich girl mysteriously missing, such as a fan to become the biggest suspects, and to evade capture process met the blind girl Hui Lan (Dongyu Zhou decoration). With the development of the story, such as a fan and Hui LAN, Joe has had a series of complex and romantic emotional entanglements, finally the truth surfaced, and Fan Ruyi into a difficult choice in innocence and love.