The Safekeep by Yael van der Wouden. It's completely a lesbian art film like Portrait of a Lady on Fire in book form. I am so deeply into it. The plot:
It's 1961. Isabel grew up isolated and lonely, with only her mother, her younger brother, and the house they moved into after escaping from the Nazi bombings to love. But now her mother is dead, her younger brother is no longer the helpless little boy she could take care of and living happily with his male lover, and the house isn't hers. It was left to her older brother, and she is only allowed to live there until he starts a family. She finds comfort in keeping exacting order in the house, and in her older brother's string of meaningless girlfriends disappearing one after the other. Until that stops. He has a girlfriend he's really committed to this time, and she's very odd. Eva the girlfriend dresses like she's poor but is apparently an heiress. She acts bubbly, dumb, hyper feminine, but when confronted by Isabel about her likely doomed relationship she suddenly turns shrewd and cold. And now her older brother is on a business trip, and forces Isabel to accept Eva staying with her in her home. The tension is incredibly thick, and she suspects Eva is tormenting her by gradually stealing objects from the house... but this isn't a psychological thriller. It's a tale of suppressed truths and stifled sexuality.
