Them

Lucas and Clémentine, a French couple living in a large house in Romania, are woken in the night by figures on the property who cut the power and get inside.

Bustillo and Maury's countrymen were making the extreme films; David Moreau and Xavier Palud made the opposite, a lean, quiet, almost bloodless siege that relies entirely on the dark and on not showing you who is out there.

It runs 77 minutes and wastes none of them, and the reveal of who the attackers are is the bleakest thing in it.

It predates the American The Strangers, which has an almost identical premise, by two years, and the comparison has followed both films around ever since.

The claim that it is based on true events is the standard marketing lie of the genre.