Pamela Franklin

Two young English women go on a cycling tour of the French countryside. When one of them goes missing, the other begins to search for her. But who can she trust?

A team consisting of a physicist, his wife, a young female psychic and the only survivor of the previous visit are sent to the notorious Hell House to prove/disprove survival after death. Previous visitors have either been killed or gone mad, and it is up to the team to survive a full week in isolation, and solve the mystery of the Hell House.