His House is ostensibly a horror movie about a refugee couple, Bol and Rial, that escapes South Sudan’s civil war to find themselves confined in a haunted house in the back alleys of a UK suburb. Almost right from night one, things start to go bump, and the differing reactions of Bol and Rial (played expertly by Sope Dirisu and Wunmi Mosaku) form the backbone of the movie.