The ball is over

A crowd of grotesque, goblin-like creatures with pale skin and pointed ears scream and thrash in a dark, crowded environment, their faces contorted in rage. The scene cuts to a man in a black robe and a golden, ornate mask, who slowly removes the mask with both hands, revealing his face to a group of robed figures in a dimly lit, formal room. The sequence repeats, showing the masked man again, then the crowd of creatures, and finally a woman submerged in a bathtub filled with dark, bloody water, her chest exposed with a white, circular object embedded in her skin.