A superhero drama about Soo-yeol who has lived his whole life as a materialistic police detective, but changes into a champion for justice and fights against police corruption when a hidden persona called "K" awakens inside him.
Starring Lee Dong-wook, Wi Ha-jun, Han Ji-eun, Cha Hak-yeon, Kang Ae-sim, Kim Dae-gon, Cha Si-won, Lee Sang-hong, Kim Hieora, Lee Seung-heon