Cui Ye, an ordinary Go teacher in the early 20th century, was unfortunately taken hostage in a credit union robbery. To protect himself, he had to assist the robbers in escaping the police. However, in the process, he discovered that his Go talent could be used for crime. Under the pressure of life and reality, Cui Ye gradually embarked on the road of crime and progressively lost control. As a policeman, His brother Cui Wei hopes he can return to the right path, but things go against his wishes. The story of the two brothers drifting further and further away on the black and white roads!