Kaufman's Game (2017)

British drama in which out-of-work boxing enthusiast Stanley (Jye Frasca) is approached by a mysterious stranger who offers him a drug which gives him hopes of becoming stronger and more enduring. Things soon turn dark however when Stanley finds himself caught in endless tests which examine his capabilities and push his mentality to the very edge for the benefit of an organisation who seek to use his new-found power for their own benefit.