I honestly tried to understand the point of this film for the entire 77 minutes of it. I gave up. Here are several versions of what's going on there. Not a single one of them convincing enough: It is indeed the film about subway workers. In Vladivostok where the subway exists only for ammunition in the old fortress, not for humans.It is indeed a tale of darkness, as the title suggests. The darkness of mind. Director's mind. The director wanted us to know that police doesn't hold anything sacred. The director wanted us to know that police are not human. The director wanted us to know that police in Russia don't have any rights. Hilarious, that, in a police state. The director wanted us to know that police are not allowed to rent rooms in flee-houses, and there is really no choice for women in police but spread their legs, and be grateful for little mercies of nature.There are also no traces of any kind of writer in this film, nor an editor.