Taegu, a poor college student, makes a contract with a devil in Devil Capital, offering part of his senses in exchange for escaping his debt. After paying off what he owes, Taegu tries to return to an ordinary life, but the devil begins to pressure everyone around him in order to take everything from him. In the process, Taegu becomes entangled in a murder case together with Jarin, who lives in the room next door, and is forced to make another contract with the devil. Taegu and Jarin struggle desperately to break free from the devil…
