Katya Andreeva studies in the same class with Lyusya Cherepakhina and Lou Geranmae. Yurka Ermolaev came up with the nickname Karkusha for her - for her resemblance to the eccentric crow from the program “Good night, kids.” Katya is an “accident girl”: she has the gift of attracting trouble and finding herself at the center of all school events. Karkusha became friends with tenth-grader Olya Ganicheva, who fell in love with Katya’s older brother, a handsome first-year student at VGIK.