He CHEATED on his wife WITH THEIR DAUGHTER'S FRIEND. Olga and Igor have been married for years, with a grown daughter, Masha. Nothing hinted at changes in their small Moscow apartment—until Igor became infatuated with his daughter’s friend, Ksyusha. Olga acted decisively: she threw Igor out and filed for divorce. Igor was forced to move in with his new love and her striking mother, Irina—his peer in age. But soon, he had to return to the apartment with his wife. Meanwhile, Masha fell in love, and, as if fate was mocking them, her boyfriend Kirill came from out of town. Living together in such cramped quarters pushed them all to seek an unusual way out. The parents decide to sacrifice their own happiness for their daughter’s sake and set out to find new partners—free from the “apartment problem.”