It’s famous for being one of the most "unwaveringly brutal" films ever made. It often gets compared to Martyrs and High Tension , but many fans find Inside even harder to swallow due to its focus on the vulnerability of pregnancy.
The film’s audio mix is intentionally chaotic: screaming, shattering glass, heavy breathing. You will miss spoken lines if you rely solely on your ears. Hard-coded, well-synced subtitles allow you to turn the volume down (yes, you might want to) while still following the plot.