Nastya’s life has changed dramatically, because she entered the biology department of the best university in the city and can now rightfully be called a student. She is absolutely happy, if not for one “but”: her boyfriend Valera did not get the required passing grade for the biology department. He studies hard to enter next year and practically does not see Nastya. Meanwhile, at the biology department, Nastya meets Isolde and her friends, among whom there is a long-haired handsome guy named Elf. He shows Nastya signs of attention, but it seems that he is hiding something... Will Nastya reveal his secret? And will their relationship with Valera survive these tests?..