A summer youth camp by the sea. Tonya, a quiet, reserved, and gullible girl, becomes neighbors with Lyudka, who is vibrant, assertive, and calculating. They both fall in love with the same boy. Suddenly, it turns out that Tonya possesses supernatural abilities she cannot control.

Irina Vladimirovna seems to dote on her son and Wife, but her guardianship is suffocatingly excessive: the relationship is so strained that she has to visit a family psychologist. At one of the receptions, the specialist suggests that the woman begin the separation process with the child. Irina Vladimirovna just has a second apartment, which is now rented to tourists, where Zhenya could move, and there, you see, some kind of social life will be adjusted, since one of the two rooms will still be put up for daily rent. In a new place, Zhenya immediately meets a neighbor girl, Dasha.

1942 年，卫国战争。经验丰富的狙击手兄弟阿列克谢和叶戈尔·布罗申在执行任务归来后遇到了技术高超的德国狙击手温格勒。决斗的结果是，叶戈尔死亡，阿列克谢身受重伤并被送进医院。伤势刚刚痊愈，他就冲向前线，但医疗委员会发现他不适合服役。指挥部没有让他返回前线，而是交给阿列克谢一项不同寻常的任务：教年轻的女学员狙击技术。阿列克谢对他的学生进行严格的训练，有时甚至很残忍。