A asylum patient escapes and intrudes upon a house party hosted by Dr. Seward, referring to the guest of honor—Count Dracula—as "Master." Moments later he insists he does not know the Count and is led back to his cell. Dr. Van Helsing comes to consult on the case, and manages to hypnotize the patient, so he recounts in flashback events in Transylvania, including an attack by Dracula's brides….