On a cold rainy night, a fire destroyed key evidence, but Gu Xiao, the former criminal investigation captain who was suspended due to a broken evidence chain, found an unburned fingerprint chip in the rubble. He knew very well that only Jiang Yan, his former partner who had been sent to prison by his own hands, could know the true hiding place of the evidence. The two met again in a heavy rain. One was a lone wolf exiled by the system, and the other was a desperado hiding in the dark after escaping from prison. They have no trust, only hatred and unresolved truths. When the police are chasing Jiang Yan with all their strength, and the mastermind behind the scenes is clearing out all the insiders, Gu Xiao must retrieve the last evidence that can expose the entire conspiracy from the pile of burned evidence before dawn.
