In the dark horror film Bagman, a family finds themselves ensnared in a nightmare as they are hunted by a malevolent, mythical creature. For centuries, and across cultures, parents have warned their children of the legendary Bagman, who snatches innocent children and stuffs them into his vile, rotting bag — never to be seen again. Patrick McKee (Sam Claflin) narrowly escaped such an encounter as a boy, which left him with lasting scars throughout his adulthood. Now, Patrick's childhood tormentor has returned, threatening the safety of his wife Karina (Antonia Thomas) and son Jake (Caréll Rhoden).