D ubbed “the Gen-Z Fatal Attraction ” by its male star Michael Johnston, Obsession ’s debut director Curry Barker has been equally open about his creepy, quirky chiller’s influences. And there are many. From Hitchcockian suspense thriller Hereditary to Elisabeth Moss’ The Invisible Man reboot by way of classics Misery and The Texas Chainsaw Massacre , this is genre geekdom at its nerdiest. Oooh-eee! The film starts, as all good American teen movies do, in a grotty diner. Johnston’s Bear is professing his love to a waitress across a sticky plastic-topped table. It’s awkward. It’s intense. It’s not going well. But don’t worry, he’s just practicing. The waitress is only a friend – and Bear is rehearsing before he meets actual apple-of-his-eye Nikki at a bar later on. You’ll get used to this. Barker loves to pull the rug on his audience when they’ve just got comfortable. Fast-forward to the evening, and Bear is driving Nikki (Inde Navarrette) home through their suburban, Stephen King-esque neighbourhood.…