The idea of perspective and perception comes back in the new Zach Creggers film "Weapons". While not as jarring as "Barbarian", its structure is much more specific and crisp despite a little bit of a silly conclusion that nonetheless plays to mythology. Julia Garner and Josh Brolin have the main protagonist roles with a couple other character actors really nicely rounding out the cast.

The context of horror depends on expectation and what one thinks of the path going in. With "Barbarian", even with the influx of how the trailers built the film up, it is about the misdirect and perspective of the audience. But the idea revolves in how it plays out. This usually has to do with structure and the intensity of what the reveal is.