Joker's secret

The Joker, with his distinctive white face paint, dark eye makeup, and red smile, is shown in a close-up, looking intensely at another person whose back is to the camera, in a dimly lit indoor setting. The scene then transitions to a makeup artist using an airbrush and a brush to apply detailed, textured makeup to a person's face, transforming it into a grotesque, aged appearance with deep wrinkles and darkened eyes.