The story takes place in Joseon period, when power struggles surrounding the throne had reached extreme levels. In order to escape those who plan to assassinate him, the King puts a clown, who looks exactly like him, on the throne.

A dogged police detective, an enthusiastic PD of a TV investigative show, a former criminal profiler, a legendary fighter, and a former ace pathologist team-up to solve cold cases.

The series is about a man who sold his soul to a devil ten years ago to obtain fortune and fame. As his contract is soon to expire, he tries to make a deal with the devil using his life as collateral.

"The Juror" is about the justification of a court of jurors who discuss an unexpected event.

Set in the 1940's when Korea was under Japanese occupation. Korean people were banned from speaking their own language during that time.

Pastor Park works to expose suspicious religious groups. He's hired to look into the cult group Deer Mount. Meanwhile, Police Captain Hwang investigates a murder case and the main suspect is a member of the Deer Mount cult.