Macabre CGI poster for 'Luigi's Mansion 3', blending gothic horror and slasher terror. Luigi, with hollow eyes and a tattered coat, holds a flickering lantern in a decaying Victorian mansion. The walls drip with blood-like shadows, ghostly hands emerge from portraits (inspired by Poe's 'The Fall of the House of Usher'). A monstrous, knife-wielding slasher ghost (reminiscent of 'The Tell-Tale Heart') lurks behind him, its face half-rotted. Ultra-detailed textures: cracked skin, cobwebs with HDR glow, eerie candlelight casting long, distorted shadows. Dark fantasy atmosphere, 8K, Unreal Engine 5 realism, cinematic dread. See more