Say it twice. Halloween Horror Nights confirmed its first haunted house for its 30th year: Beetlejuice. “Beetlejuice will haunt, taunt and send you screaming out of the haunted house.”The 2021 theme will be Halloween Horror Nights 30: Never Go Alone. The event will be held on select nights from Sept. 3 - Oct. 31. Puppet Theatre: Captive Audience will also arrive at Universal Orlando’s Halloween Horror Nights in 2021.