Lilja and her friend pull a mean trick on Melitta with Lilja writing a fake love letter in which she pretends to be a boy. But she’s surprised when Melitta replies. The seemingly stupid co-pupil actually comes across as OK – intelligent, sensitive and thoughtful. A pen-pal correspondence ensues until the love-struck Melitta suggests a meet-up and things start to get complicated. Next Door Letters is based on a true story.