Pillion It is the English word that designates the rear passenger on a motorcycle, what we would call the packageBy metonymy, in the slang of gay biker subcultures, it also refers to the passive figure in relationships based on dominance and submission. Because that is the context in which this unexpected romantic comedy unfolds, about a conventional young man, Colin, who falls in love with the leader of a biker gang, Ray. Harry Lighton's first feature film is based on the novel Box Hill by Adam Mars-Jones, to turn a few expectations on their head.