Writer Choi Lan wrote the script for 20 episodes of "Black". Due to planning, OCN ended up shooting 18 episodes, and Director Kim changed the ending without authorization. Writer Choi had disputes about the ending after the broadcast and posted the script on his blog. After an interview with the media, Director Kim apologized to Writer Choi and admitted that he was not faithful to the script. "Black" is a life and death mystery drama written by the screenwriter of "God's Gift - 14 Days" and directed by the director of "Voice". "Black" looks down on the human world from the perspective of the god of death, and the suspenseful and foggy plot. The drama tells the story of BLACK (played by Song Seung-heon), a hell messenger who guards death and possesses a policeman, and Kang Sha-ho (played by Go Ara) who can see the shadow of death.