Flesh (2017)

JOSH, held captive in a barren room alone for 24 years, yearns to abandon his identity as a monster and feel human again, and develops a plan to devour human flesh, and the heart specifically, to do so. One day, curious BRAD, the guard of the building, wanders into Josh's room. With his goal in mind, Josh befriends Brad. However, he feels internally conflicted as Brad proves his kindhearted nature.