YMMV / Black (2017)

• Complete Monster:
  • Wang Yong-choon is a former hitman and sadistic Serial Killer who killed his wife for insurance money. Roped into the far-reaching conspiracy with the promise of a lofty payout, Wang killed many people for the conspiracy and murdered the father of Detective Ha-ram when he saved a child from Wang. After escaping a mental hospital, Wang begins taking revenge, torturing the hospital director to death and killing whoever else catches his fancy, even trying to revenge himself on Congressman Kim by locking him in a burning building with children, not caring if they all burn.
  • Congressman Kim Woo-shik is one of the masterminds of the conspiracy. Involved in a prostitution ring, Kim raped a teenage girl on camera, unaware he was being filmed. Having numerous people murdered to recover the tape and hide his crime, Kim personally murdered his blackmailer's boyfriend to keep the secret and in the present continues his crimes by eliminating even people close to him if they pose a danger in order to keep his political career alive.