Wainscoting, decorative trim, a functional staircase, period furniture, and practical lighting established a formal interior shaped by observation. As the story tightened, the same details that made the room believable also reinforced a growing sense of confinement.

The design supported the performers by keeping the world stable while power and perception shifted inside it. The drawing room became an active container for the play's tension, where order, manipulation, and fear could sit in plain sight.