Ajouter une intrigue dans votre langueSix scientists investigate a strange phenomenon at the creepy Headstone Manor, the site of a mysterious massacre years earlier that took the lives of 18 guests in one night.Six scientists investigate a strange phenomenon at the creepy Headstone Manor, the site of a mysterious massacre years earlier that took the lives of 18 guests in one night.Six scientists investigate a strange phenomenon at the creepy Headstone Manor, the site of a mysterious massacre years earlier that took the lives of 18 guests in one night.