One by one, the guests start to die: first is Michel Raven, whose drink was poisoned. During the night, the housekeeper/cook, Elsa Martino, makes a mad dash to escape, only to be strangled against a pillar, an ancient Persian method of execution, as noted by Hugh Lombard. A search of the hotel is initiated by General Salve, who splits everyone into pairs. Not long after everyone separates from each other, Salve is stabbed to death in the hotel's catacombs. Their search reveals there is no one in the desert except the seven of them, and that the killer is one of them.