A sinopse da Wikipedia para o filme parece indicar que o filme recebeu o nome dos eventos que supostamente levaram para o primeiro curta:
Four sisters living in an old château are convinced that they are vampires. One believes she was raped by the villagers years before, and is blind; another is afraid of sunlight, and they all react violently to crucifixes.
E no final:
Thomas asks one of the sisters to bite him to prove her wrong and discovers she is, in fact, a vampire.
O que indica que provavelmente é verdade.