The Ravenspurs are wealthy and well respected British family, but they seem to have some sort of mysterious curse upon them. In a short time distance, several members of the family fell as a victim of a mysterious tragedies in their family home. Few of the last remaining members are destined to solve the mystery before the family gets extinguished. Frederick White (1859-1935), mostly known for mysteries, is considered also as one of the pioneers of the spy story.