Shanghai in 1941, the last darkest moment of the isolated island period.
Military agent Gu Shen was captured by the Japanese army while performing his mission. Under severe torture, his superior and "fatherly" mentor Fang Shijie was exposed and sacrificed. Anger and self-blame drove Gu Shen to make a fatal mistake, almost exposing the entire intelligence network. He was transferred back to Chongqing for review and his career hit rock bottom.
Betrayal and belief, love and mission, loyalty and belief - when the three identities are intertwined, when all trust may be a carefully designed scam, Gu Shen must find his true belonging in the maze woven by lies.
