“My take on the ending is that it symbolises the idea that you could be walking around, covered in blood,, people looking at you like you’re a freak, and you just don’t care,” Hannah suggests, referring to her final scene with Gillian Anderson.
Article source: https://www.huffingtonpost.co.uk/entry/teenage-sex-death-camp-miasma-ending_uk_6a86ef49e4b0ca44601b5319