Scary season is here, providing the perfect excuse for drinking and running riot. Slip into your freakiest attire and prepare to party till you drop with the undead. The fun begins at Piccadilly Institute, taking in five bars and clubs along the way with free shots and shenanigans galore. This Halloween, do something that scares you. Do the Nightmare Near Leicester Square pub crawl. Over 18s only. Valid photo ID required.