Sir Ronald Burton, a British nobleman, embarks on a dangerous mission to uncover the fate of his missing friends, who disappeared after visiting the foreboding castle of Count Von Bruno. Disguised as a hunter and using the alias Richard Beckett, Burton gains entry to the castle under the pretense of accepting an invitation from the Count. He soon encounters a host of unsettling characters, including the formidable Count Von Bruno himself, who harbors a twisted sense of hospitality, and Dr. Meissen, the castle's mysterious physician.

As Burton delves deeper into the castle's sinister secrets, he discovers that his friends met with an ominous fate orchestrated by Von Bruno, who has malevolent plans for anyone who crosses his path. Amidst secret passages and lurking dangers, Burton must navigate treacherous grounds to gather evidence to bring the Count to justice. Engaging in a precarious game of wits with Von Bruno, Burton races against time to ensure he avoids a similar perilous destiny, all while unraveling the dark mysteries that shroud the castle in terror.