Antoine Morfaux, an airline pilot, commits a high-level crime: he parachutes from a night flight, kills his victim at home and, thanks to the complicity of his co-pilot, he re-enters the plane just before disembarking. He thus constitutes a very solid alibi. Even if the evidence seems to indicate that the victim was killed during a burglary that went wrong, Elodie sees beyond appearances. For her, two conclusions are clear: there was intention to murder and Antoine Morfaux is the most charming of men. Despite the game of seduction that sets in between them, Elodie quickly comes to suspect Antoine...