The film is adapted from the game of the same name. "Codename 47" (Rupert Friend) is the top killer of a mysterious killer organization. He has a calm personality, extraordinary wisdom, mysterious and low-key actions. No one knows his background. He can only be identified by a tattoo barcode on the back of his neck. "Codename 47" is both the embodiment of evil and an apostle of goodwill. He never asks about the truth and meaning of crime until he meets a mysterious woman named Katya (Hannah Ware), who changes his fate and makes him hunted by the killer organization. His life is in danger...