Iliana is a psychological thriller with elements of noir and black humor, the actions of which are rapidly unfolding within 24 hours. The plot of the film is tailored as an intricate puzzle with a lot of unexpected twists that will deceive even the most sophisticated viewer. Unpredictable plot moves will keep you in suspense and ignorance until the very last frame. Iliana - this is passion and self-interest, love and hate, revenge and betrayal in one bottle - all that can happen between a man and a woman.

The detective story takes place on Maslenitsa in St. Petersburg in March 1894. A series of crimes leads A. Pushkin to the insurance company "Stability". It turns out that the employees are involved in scams. The investigation leads to the family of the owner of "Stability" M.Alabyev. Pushkin's beloved A. Kern is involved in the war that unfolded between the children of Alyabyev and his wife Lydia. Thinking that he is investigating the case, Pushkin does not suspect that he has entered into a deadly battle with the killer, in which Agatha's life is at stake.