247°F tells an extreme, horrible and ironic situation that could happen to anyone, and that’s what makes it terrifying. The writers know what they are doing. It’s as if they coined the subgenre. They set out to do a well-paced and plausible claustrocore film with good exposition, an incredible hook, a personal conflict, a drunk character and a woman with emotional baggage.
There’s a little bit of love, in here, a little bit of sex, some skin, some gore, a good dose of mansplaining and a whole lot of heat, once shit starts going down at the turn of the second act. Three of the four main protagonists, at that point, get trapped inside a sauna, and they’ll probably stay there for a good while. This is a horror movie and they’re not getting out that easily.
The film doesn’t side track from its premise and it doesn’t really cheat its way out. What you see is what you get. The writers’ challenge is to fill up this running time without resorting to fluff, a procedural, or an external factor, as much as possible. The camera shouldn’t technically leave the sauna, but it does in order to cover the fourth protagonist’s arc. And what a frustrating arc!