《少女青春期》讲述的是：Four 18-year-old girls Jessica, Jenny, Taru and Aino are on the verge of adulthood as they lose their innocence and, at times, their faith. Based on the story of four 18-year-old girls from Helsinki who kept provocative video diaries about their lives during the course of a year, in 2011.　　影片讲述四个18岁的女孩耶西卡、燕妮、达鲁和艾诺正处于成年的边缘，她们开始对未来产生迷茫，学业、生活以及懵懂的爱情。故事根据四个18岁女孩的故事改编。