The murder of Mlle Schwartz, a teacher at Château Mont Rose, destroys the reputation of the oldest finishing school for girls in Switzerland. It goes out of business. For eight years, the estate remains locked and boarded up until re-opening as an inn and wax museum. Former students receive notification. They visit. Then they disappear. When the number of missing women grows, Interpol alerts Detective Cloquet of Lausanne Sûreté. Cloquet pressures his young deputy, Paul Junod, to shadow expected arrivals Lauren Briant and Rachel Gordon, both alumni at the boarding school. In order to stay close to Lauren and Rachel, Paul has to join their paranormal film team. Meanwhile, Cloquet revisits Château Mont Rose to seek out its headmistress, a woman long dead.
