This is the story of Dracula's curse from the times before the first Castlevania game.
The original name of the game is 悪魔城伝説 (Akumajou Densetsu, meaning "Legend of the Demon Castle").

This movie is interesting, because the game is complex and difficult and the soundtrack is good.

This movie features the Sypha path, which is 2:37 slower than the Alucard path played by Genisto.