On the opening night of his private exhibition, the antiques empire mogul 'Murad' was found dead from a single gunshot wound in the rare paintings vault beneath his mansion. The body was discovered at exactly 9:30 PM when his wife went down to check on him. The vault is windowless and has only one entrance. Beside the body lay an instant camera and a printed photograph of the crime scene showing the corpse, suggesting either the killer took it as a defiant message, or the victim snapped it before drawing his last breath. The five suspects were scattered across different floors of the mansion, and each tells a seemingly coherent story about their movements that night.