The Prisoner of Château d'If or (Russian: Узник замка Иф, romanized: Uznik zamka If) is a 1988 Soviet drama film directed by Georgi Yungvald-Khilkevich based on the novel The Count of Monte Cristo by Alexandre Dumas.

But the deep-seated jealousy of Edmond's enemies destroys everything... On the advice of Danglar, a close friend of Dantès, the fisherman Fernand who is passionately in love with Mercedes writes a denunciation to the prosecutor of Marseilles and by the order of assistant prosecutor de Villefort hapless Dantès becomes imprisoned in the most horrible dungeon Château d'If.

Dantès, not understanding what has happened, almost goes mad in the gloomy prison but by chance he meets Abbé Faria, a wise and resilient old man.

De Villefort was appointed as king's attorney, and the simple fisherman Fernand has become a Count, General, Lord of France and - the most important for him - Mercedes's husband.

Power and money - all this is now in the hands of scoundrels making them almost invulnerable, but the Count of Monte Cristo is full of lust for revenge.