This film is so eerie and beautiful, but incredibly dark and disturbing at the same time. It was very subtle with a slow pace and the kind of thing you wouldn't be able to appreciate if you were only half-watching it or on your phone (which, by the way, is one of my absolute pet peeves). It's about a girl called Lydia (played by Maisie Williams) whose best friend begins to suffer from fainting spells and eventually dies as a result of one - after her funeral Lydia begins to suffer from them herself, and the rest of the school slowly follow suit as the school try to work out the cause of the spells. The story also focuses on the difficult relationship between Lydia and her agoraphobic mother. Essentially this film is all about female friendships and relationships and unexplained phenomena, with strong undertones of the supernatural and nods to the medical treatment of women in previous eras. It reminded me of The Virgin Suicides and The Moth Diaries, two movies I also love, but with significantly less dialogue and slightly less death. I loved the setting of 1960s England, and especially of the girls school - I always love books and films that are set in schools, which is kind of strange as I don't even go to school any more but probably says something about an attachment to childhood or whatever. However, I found myself getting a little frustrated with the lack of clarity in the storyline - what was the actual cause of the fainting? How was it spreading among the girls? But while the logical part of my brain was demanding answers, I'm also trying to learn to appreciate a certain ambiguity in books and films, as of course it encourages the spectator or the reader to reflect on art and draw their own conclusions.