In January 1987, a 22-year-old college student dies during a police interrogation. Under the orders of Director Park, the police request the body to be cremated in order to destroy evidence. Public Prosecutor Choi, who was on duty on the day of the incident, denies the request and calls for an autopsy. The police maintain the lie that the death was a simple accident, resulting from shock. The autopsy results, however, point to torture as the cause of death. Yoon, a journalist following the case, reports that the death was a result of asphyxiation during torture. Director Park attempts to conceal the truth by ending the case, arresting two detectives including inspector Cho. While in prison, inspector Cho reveals the truth to prison guard Han Byung-yong, who embarks on a dangerous mission to relay the information to an opposition politician through his niece, Yeon-hee.

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