If you prefer to dwell in mystery this Halloween, consider this spookfest in Shibuya's Cerulean Tower Tokyu Hotel, where all guests (and staff) are required to attend in disguise by donning a full costume complete with a face mask (no, not those common white ones you wear when you catch a cold).
Enjoy live music and entertainment, including a show by Japanese singer Maki Nomiya, who's a Shibuya-kei (a sub-genre of Japanese pop) icon well known for her music and fashion. Moreoever, Shuya Okino, a member of the DJ unit Kyoto Jazz Massive, Tomoyuki Tanaka, better known by his stage name Fantastic Plastic Machine, and famous commentator Takaaki Umezawa will be manning the decks throughout the night.