In a hospital dominated by ego and corruption, an enigmatic but brilliant surgeon arrives — taking on seemingly impossible cases amid fierce opposition.

Major crimes unit detective Seong-jin arrests Tae-sung for petty crimes, but shocked to find out that he is the notorious serial killer. However, Seong-jin becomes doubtful of his identity as the serial murder case is investigated.

After a powerful conglomerate chairman is betrayed by his children and wakes up in the body of a young soccer player, he uses his business genius and athletic physique to seek ultimate revenge against his family.

In 1999, a lively girl and her neighbors suddenly gain imperfect supernatural powers after a strange incident, pulling them into a fight against a dangerous force behind a series of disappearances in their city.

Three elite North Korean sleeper agents live under cover for so long that they believe their cover stories are their real identities. They are shocked when they are ordered to kill one another or face death at the hands of an elite hit team.