Colman Domingo is a charismatic presence in this expertly crafted cat-and-mouse story about a TV host caught up in far-right machinations – which really gains heft as it goes on

Just because you’re paranoid doesn’t mean they’re not out to get you. Words I have lived by since I first saw them on a badge at a Camden market stall when I was 14. And here I am, still alive to tell you about it. Makes you think, doesn’t it?

It is the guiding principle behind all successful conspiracy thrillers, and The Madness has taken it to heart. Our hero is CNN-ish TV host and media pundit Muncie Daniels (Colman Domingo), who is on the brink of being offered his own show and all coming right with his world, professionally at least, and so takes a little break in the Poconos mountains to try to start his novel before fame interferes. Never do this, kids. You can write your book just as well in the safety of your own home as in a picturesque but isolated cabin, and there is less chance of coming across a murder scene in a sauna if you do. Alas, poor Muncie and his discovery of bits of his neighbour strewn across the polythene-sheeted floor of just such an amenity.