Martino is a young child who claims to have an invisible friend called Luca. His parents assume it is just a game, but strange things start to happen.

Based on Mikhail Lermontov's novel Vadim, this costume drama, set in Russia during the 1700s, chronicles the battle between a vengeful, anarchic peasant and the tyrannical landowner who killed his mother and father.

Madness and jealousy push a not very attractive young man to plan to kill a friend who, on the contrary, has a lot of luck with women.