The TV series "The Abyss" tells the story of old friends meeting under unusual circumstances. Varvara works as a lawyer in Moscow, but one day she decides to visit her childhood friend Andrey in a cottage settlement where he lives and serves in the local police. At that very moment, Andrey is investigating the murder of a local resident - a young girl. Unexpectedly, Varvara claims to see the ghost of the deceased, and then she immerses herself completely in the investigation. Andrey suspects that she came to his settlement not only for a reunion.