Lyuba is an emotionally and physically tired single mother. Her son’s problems with his studies have been haunting her lately, but this is not what weighs on her the most. The doorknob creaks. Someone is trying to break into the apartment. Cold sweat, loud pulse. Lyuba doesn't know who it is. She's not waiting for anyone. Thoughts are scattered, silence around. The creaking gives way to a loud crunch... It seems that just a little more and he will break down the door. The mysterious stranger will retreat, but more will come. And in order to deal with the uninvited guest, Lyuba will have to understand who he is: a thief, a maniac, her ex? A person... or something else?