Adi Shankar had this to say in a statement.
"Jee-woon Kim's I Saw the Devil is perfect in so many ways. The intention is not to remake the film per say but rather to "port" it console style for international audiences."
In the 2010 Korean original, Oldboy's Min-sik Choi plays Kyung-chul, a dangerous psychopath who kills for pleasure. The embodiment of pure evil, he has committed horrifying and senselessly cruel serial murders on defenseless victims, successfully eluding capture by the police. His latest victim is the beautiful Ju-yeon, pregnant fiancée of elite special agent Soo-hyun (The Good, the Bad, the Weird's Byung-hun Lee). Obsessed with revenge, Soo-hyun decides to track down the murderer, even if doing so means becoming a monster himself. And when he finds Kyung-chul, turning him in to the authorities is the last thing on his mind. The lines between good and evil fall away in this diabolically twisted game of cat and mouse. Pushing the concept of revenge to its most extreme limits, the film transcends the police procedural and serial killer genres in surprising and thrilling new ways.