This is a true horror, all the more disturbing for the apparent ease with which this couple accept the status quo. It also feels, sadly, incredibly relevant to the modern day.

An uncompromising and chilling vision of evil unlike any other film about Nazism.

Glazer takes a meticulously forensic approach to the pair, but it could never be said he’s putting them under a microscope. Far from it. He’s determined to keep them at a distance, perhaps afraid that a single close-up might taint the whole exercise.

The power that comes from the juxtaposition of garden parties and the sounds of mass murder is magnified by the dissonance of Mica Levi’s score. Glazer's is a film that is chillingly effective in realising its astonishing ambition.