Mountaineer Bernard Lang's body is discovered with a broken neck in climbing gear at the foot of the Luxor Obelisk in the Place de la Concorde. Fascinated by the obelisk and its history, Jo knows that the monument is also a great vantage point of the surrounding area, including the suites at the Hôtel de Crillon. And in one of them, that evening, a well-bred young woman (Miranda Raison) was cheating on her husband.