But if the entity successfully kills you, it will once again go after the person that gave it to you. Jay unwittingly sleeps with her new boyfriend, and finds herself stalked by the presence, which manifests as everything from an elderly naked man to a zombified cheerleader.

It Follows is terrifying, uncomfortable and also makes very little sense. Quentin Tarantino memorably chastised Mitchell’s apparent inability to keep “his mythology straight” during a 2015 interview with Vulture, picking at the movie’s cavalier relationship with the “rules” of its own villain, how it kills and how it can be successfully harmed.

The film also inspired a particularly detailed letter of complaint to The Telegraph’s very own Tim Robey over his positive review. And while the mysterious correspondent, based in Oregon, was clearly either unwell or the world’s most determined prankster, there was a certain logic to his criticism. Why didn’t Jay just fly to Australia to escape her pursuer? Surely “It” couldn’t just walk all the way through the ocean until it arrived down under…

It’s important to remember, however, that It Follows, like so many of the horror films it inspired in its wake, is far more interested in mood than its own internal logic. It’s something that has made this new wave of spooky thrillers particularly polarising as a result, the dismal audience scores and underwhelming box office grosses of It Follows-alikes including The Witch and It Comes at Night sparking significant debate about the appeal of modern slow-burn horror, their sinister intensity only matched by their sometimes alienating pacing.