In every city, on every street, in every home, there are people consumed by profound loneliness. They have no idea how much they need one another. Yet all it takes is for one of them to open the door to a neighbor—and an unstoppable chain reaction begins. Polina lives on the third floor, and she had no intention whatsoever of letting drunken Filipp, who had fallen asleep on her doorstep, into her home. Her plan was simple: together with her neighbor Liza, find the keys to his apartment and send him on his way. But fate had other plans—the key was in a briefcase stolen by a vagrant. With the help of Anton, a neighbor from the fifth floor, they managed to neutralize the thief—not in the most elegant way, but effectively. From that moment on, events unfolded against their plans and wishes. Through a series of mistakes, through the bitterness of romantic disappointments, they gradually opened all the necessary doors, one after another. And in the end, the very person they had been waiting for with all their hearts stepped through the doorway.
