Following his own farewell party, impeccably fair and honest attorney Du Qui (Zhang Hanyu) is suddenly accused of murdering a female colleague. Police investigator Satoshi Yamura (Masaharu Fukuyama) channels all his energies into the push to apprehend Du Qiu. Yet despite closing in, Yamura has repeatedly allowed Du Qiu to slip through his fingers. While he bitterly regrets those failures, Yamura also secretly admires Du Qiu for his resourcefulness. While in pursuit, he finds that the circumstantial evidence for the murder case is flimsy, and begins to suspect that someone is laying a trap for Du Qiu. At length, the two of them join forces in the quest to get to the truth of the matter.