A passionate animal lover and skilled veterinarian, no one would suspect that Kim Soo-hyun (Jang Ki-yong) is actually one of the most lethal men in the world. Using his facade as a defender of animals to hide his true identity, Kim Soo-hyun has forged a reputation between the worst of the worst as the epitome of precision, skill and, above all, anonymity. A complete mystery, he is a ghost, a shadow, a lethal whisper, hired by individuals and organizations around the world to deal with problems that only he is capable of dealing with. On the opposite extreme, is Do Hyun-jin (Nana), a tenacious detective whose external cold image hides an empathic soul. Using an effective combination of skill and instinct, Do Hyun-jin ends up working on a case that leads her directly to Kim Soo-hyun. Believing that he is the serial killer she seeks, Do Hyun-jin thoroughly investigates the identity and past of Kim Soo-hyun, but what she finds shakes her to the bone. Now, bound by fate, Do Hyun-jin and Kim Soo-hyun set out to solve the mystery that linked them years ago.
Early working title of the series is Blue Eyes (Korean: 블루 아이즈).[7]
The first script reading was held in January 2019.[8]
Controversy
Kill It was supposed to be produced by BaramiBunda Inc., but the company's CEO Cho Jung-ho was accused of embezzlement. Studio Dragon and Crave Works later assumed production duties.[9]
In the table above, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.
N/A denotes that the rating is not known.
This drama aired on a cable channel/pay TV which normally has a relatively smaller audience compared to free-to-air TV/public broadcasters (KBS, SBS, MBC and EBS).
Notes
^Due to some ratings not recorded, the exact average rating is unknown.