Having received a “failure” on her specialty exam, graduate student Nina Arbenina had no idea that this assessment would radically change her life. Having gone into the Book Ark store to share her troubles with a familiar seller, Nina, passing through a strange door, unexpectedly found herself in a literary universe - inside the novel The Brothers Karamazov! Now, in order to return to her normal life, Nina will have to find the real killer of old man Karamazov. The novel's reality lives by its own laws, but none of the brothers is guilty of the brutal murder of their father... At the same time, the girl is trying to understand whether this is madness, a cruel prank, or the acquisition of an amazing gift?