In 2021, Russia celebrated the 874th anniversary of its capital. On the eve of this significant date, liters, together with the Moscow metro, held a literary competition, the result of which was the collection of stories “Caution, the doors are closing!” The participants were offered situations common to the capital's subway. The metro is an amazing place where anything can happen. Walking our usual route every day, we may not notice the miracles that are happening right next to us. But the winning authors noticed and turned the reader's attention to them. The heroes of the stories come to unexpected conclusions as they rush through electrical underground labyrinths. They find and lose. They meet and see off. They fall in love, feel sad, listen and hear familiar and unfamiliar voices. They become immersed in their thoughts, forgetting to get off at the right station and discovering that they have found themselves in another, completely unusual world. The book, like the metro, is filled with simple and understandable, but so confusing human stories. And to make this impression complete, liters turned the stories of the competition winners into an audio series about the Moscow metro. Thanks to the voices of the readers of the "LitRes: Reader" project and the sounds of the metro, the short stories will come to life, sparkle with different, unusual colors, allowing you to take an outside look at what seems familiar to everyone.