Moscow. Denis Viktorovich, his six-year-old grandson, is brought to the old resident of the house on Karetny. Grandfather Denis tells stories to his grandson every day about his peer who lived in a completely different era. Grandfather Denis's stories become a portal to his carefree Soviet childhood in one of the Moscow courtyards. Stories come to life, and grandson Denis embarks on a journey into the past. It turns out that at any time children have a lot in common - curiosity, spontaneity, immense love and interest in how this world works.
