Olga is young, successful business lady, who has it all: career, perfect living conditions, nice and cozy house, children, still, she is all alone. Her children Frosya and Grisha are hard to deal with. They are spoiled with various presents, but lack their mother’s attention and care. Recently just another nanny quitted her job. Kirill appears at Olga’s house due to odd and ridiculous circumstances. Surprisingly, he is the only one, who children grant with a.. probation period. Having successfully passed plenty of funny and awkward “tests” Kirill becomes their best friend and soon Olga realizes that shy and bashful young man is her dream man.