Antique dealer Robert Manning receives a letter from his brother Peter that has traveled to Greymarsh to buy antiques for him, saying that he would soon be returning home. However, he disappears and Robert decides to seek him out at Greymarsh, where their ancestors lived. He finds a party at the Craxted Lodge given by Eve Morley (Virginia Wetherell)), and he asks to meet her uncle who owns the house. Robert shows the letter to Morley written on the paper of the Craxted Lodge, but Morley does not remember Peter. He also invites Robert to stay to look for his brother the next day. Durng the night, Robert has weird dreams involving the green-skinned witch Lavinia Morley and his brother in a strange ritual. Robert is also introduced to the creepy Professor John Marsh, who is an expert in the occult and witchcraft, and Robert suspects that Morley and Marsh are both hiding something. Eve helps Robert to investigate the disappearance of Peter and soon they learn secrets from the past.
—Claudio Carvalho, Rio de Janeiro, Brazil