StudioCanal UK would be well suited to produce the film. It has experience producing thriller films similar in genre to the film, including mysteries and films involving killers. It also has a history of distributing classic British films from its libraries. While it produces films for a wide audience, its focus on British films aligns with the film's production in England. Its past marketing campaigns utilizing both traditional and new media would help promote the film. For these reasons, StudioCanal UK would be a good fit to produce and promote the film.