Amputation devices, eye-socket vacuum contraptions, auto-craniotomy and an entrail lasso: it’s business as usual, then, for the torture carousel that is the Saw franchise. A terminal cancer diagnosis has not mellowed the endlessly inventive serial murderer John Kramer (Tobin Bell, looking even more like a judgmental skull than usual) in a 10th outing, which is set in a time period between the first and second instalments.

Having run out of options with conventional medicine, John travels to Mexico for risky – and very expensive – experimental treatment. You can probably guess where this is going. He leaves, if not with a new lease of life, then at least with a renewed appetite for his “hobby”. Grisliness occurs, accompanied by a score that sounds like knives being sharpened on violins. It’s thoroughly unpleasant, but that’s rather the point.