A man and woman have great success in all of their dating pursuits. The woman uses her dating rules and fakes a car accident to capture the guy's attention, but she can't get him to succumb to her charm.

Late 18th-century Joseon dynasty. The King is beleaguered and surrounded by traitors of the ruling elite. They plan to assassinate and replace him with a puppet. But the King has some aces up his sleeve that may help him defeat them all.

An unattractive guy and a beautiful blind girl are in love. But their relationship is turned upside down when she regains her eyesight and he doesn't want to show her his face.

Cover: Ahn, who is undercover, investigating in a gang, accidentally posts the information of the organization in the group chat room. Bong: The timid housewife Jeong Hwa finds no sign of her husband's cheating but is not angry. And then accidentally learns pole dancing. Jeok-gu: Hong Joo, a convenience store part-timer, finds a man far away making fun of a woman on his way home. Stalker: A group of intellectually disabled people comes to the cafe and acts strangely. Synchroman: Sang Tae commits crimes with synchro ability.

The veteran detective Seo Do-cheol and his team at Major Crimes, relentless in their pursuit of criminals, join forces with rookie cop Park Sun-woo to track down a serial killer who has plunged the nation into turmoil.