Vika needs to leave for a couple of days to attend a wedding of some relative. But so that the children wouldn't be left unattended, she asked her mom to work as a nanny in her place. And then, to make matters worse, disinfection work started at Nadezhda Mikhailovna's house. So the grandmother had to stay with the Shatalins for those days. And she managed to give Masha such advice that it literally made Maxim Viktorovich's hair stand on end.