House of Frankenstein

Niemann is imprisoned for attempting to replicate Dr. Frankenstein's experiments. The authorities vow to stop his dangerous research. His obsession with reviving the dead becomes a point of no return.

In prison, Niemann befriends the hunchback Daniel and convinces him to become his assistant. He promises to fashion a new, beautiful body for Daniel if he stays loyal. Daniel agrees, seeing a chance to escape his own predicament.

An earthquake shakes the prison, creating chaos and a chance to flee. Niemann and Daniel escape amid the tremors and confusion. They slip away from custody into an uncertain world.

The pair meets traveling showman Professor Lampini and murders him to claim his horror exhibit. They seize the recovered corpse of Count Dracula and set it on display as part of their new venture. The mind behind this act is Niemann, whose ambition grows.

Niemann revives Dracula to exact revenge on Burgomaster Hussman. Dracula hypnotizes Hussman's granddaughter-in-law Rita and murders the Burgomaster.

Hussman's grandson alerts the police, who start pursuing Dracula. Niemann and Daniel flee in a carriage, discarding Dracula's coffin to mislead the authorities.

Sunlight destroys Dracula, ending his threat. Niemann and Daniel watch the dawn, relieved that one danger is resolved.

Niemann and Daniel travel to the flooded ruins of Castle Frankenstein in Visaria. The ominous journey tests their resolve as they press toward the mysteries rumored to lie within.

During the trek, Daniel saves a Romani woman named Ilonka from being whipped. He is smitten and persuades her to join them on their travels. Ilonka agrees and becomes part of the alliance.

At the Castle, they discover Frankenstein's Monster and Larry Talbot preserved in a frozen cavern. Niemann thaws both bodies, and Talbot regains his human form.

Talbot seeks a cure by transferring his brain into a different body, if Frankenstein's notes can be found. Niemann seizes on the possibility while Daniel worries about the consequences. Ilonka's growing affection for Talbot adds a personal stake to the plans.

Niemann and Daniel plot to transplant the brains of their former associates into the revived bodies, intending to condemn the traitors to tragic, monster-filled lives. The scheme reveals Niemann's ruthless thirst for power and revenge.

That night, Talbot undergoes a transformation into a werewolf, triggering panic in the nearby village. Fear spreads as people barricade themselves and search for safety.

Ilonka builds silver bullets and waits near Talbot's bedroom, determined to stop the curse if needed. Niemann revives the Monster and Talbot becomes the werewolf again, with Ilonka forced into a desperate confrontation.

The Wolf Man fatally wounds Ilonka, but she strikes back and shoots the werewolf before dying. Daniel blames Niemann for the cascade of betrayals as the Monster drags Niemann outside. Villagers pursue them into the marshes, leading to a perilous chase.