Three men who share a past participate in a mixed martial arts reality show where they have to fight against other contestants to win the prize money.
Ancient Korea, 1506. The tyrannical King Yeonsan-gun of Joseon is overthrown by his half-brother Jung-jong, whose reign begins with a blood bath. Over the years, traitors plot against him, sinking the kingdom into chaos. In 1528, frightened rumors come to royal palace, regarding a mysterious creature, known as Monstrum by the peasants.
Seok-jin, a magician at a club, meets a mysterious woman, Ha-yeon, who soon becomes his assistant and fiance. Things take a turn when she is found dead and he must find out what happened.
