House of Dracula is an American horror film released by Universal Pictures Company in 1945. It was a direct sequel to House of Frankenstein and continued the theme of combining Universals three most popular monsters Frankensteins monster Glenn Strange, Count Dracula John Carradine and the Wolf Man Lon Chaney, Jr.. The film was a commercial success, but would also be one of the last Universal movies featuring Frankensteins monster, vampires and werewolves.
That night, Lawrence Talbot Lon Chaney, Jr. arrives at the castle. He demands to see Dr. Edelmann about a cure for his lycanthropy. Talbot is asked to wait. Knowing that the moon is rising, Talbot has himself incarcerated by the police. A crowd of curious villagers gathers outside the police station, led by the suspicious Steinmuhl Skelton Knaggs. Inspector Holtz Lionel Atwill asks Edelmann to see Talbot, and as the full moon rises, they both witness his transformation into the Wolfman. Edelmann and Milizia have him transferred to the castle the next morning. Edelmann tells him that he believes that Talbots transformations are not triggered by the moonlight, but by pressure on the brain. He believes he can relieve the pressure, but Talbot must wait for him to gather more juice from his flowers.Edelmann searches for him and finds that Talbot survived the fall but has turned into the Wolfman. The Wolfman attacks, but suddenly returns to his human form. In a cave, they find the catatonic Frankenstein monster Glenn Strange, still clutching the skeleton of Dr. Niemann. Humidity in the cave is perfect for propagating the clavaria formosa, and a natural tunnel in the cave connects to a basement of the castle. Dr. Edelmann takes the monster back to his lab, but considers it too dangerous to revive him. ........
Source: Wikipedia