Rosebush Pruning is one of those films where you’ll say to yourself at the end: what the hell have I just seen? And not in a good way. It’s about a wealthy family who are into fratricide, parricide, incest and blood. No quiet evenings playing Trivial Pursuit or charades for this lot. Mercifully, it is only 90 minutes long but, on the other hand, there are images you won’t be able to scrub from your mind for a lifetime. Swings and roundabouts, my friends, swings and roundabouts.

Inexplicably, it has a knockout cast: Callum Turner, Jamie Bell, Tracy Letts, Pamela Anderson, Riley Keough, Elle Fanning, Lukas Gage. (You will want to pull each aside to ask: ‘Why? Did you piss off your agent?’) The family are preposterously rich Americans who have decamped to a magnificent hilltop villa in Spain. The father (Letts) is blind, while the mother (Anderson) was torn apart by wolves in the forest, supposedly. But they do........

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