To escape his debts, poor college student Tae-Gu makes a deal with the devil at Devil Capital, sacrificing part of his senses. Tae-Gu repays his debt and tries to return to a normal life, but the devil pressures him relentlessly, seeking to take everything. In the process, he becomes entangled in a murder case with Ja-Rim, his neighbor, and ends up making another deal with the devil. Tae-Gu and Ja-Rim struggle desperately to escape the devil's grasp... (Source: Naver, translated)