When the mother and father of ten-year-old Lena and Marusya decide to get married, these two completely alien girls are forced to become sisters. Now they share one room, one class, friends, and most importantly, they are fighting for the attention of their parents. Each of them dreams of returning to their former life, and for this it is necessary to embroil adults.
| Actor | Role |
|---|---|
 Sofia UmrilovaLena | Lena |
 Natalya Chistyakova-IonovaNot listed | Not listed |
 Vladimir YaglychNot listed | Not listed |
 Marta KesslerNot listed | Not listed |
 Stefan OttoNot listed | Not listed |
 Natalya VysochanskayaNot listed | Not listed |
 Galina BokashevskayaNot listed | Not listed |
 Irina SavitskovaNot listed | Not listed |
 Ivan KraskoNot listed | Not listed |