There are plenty of excellent, and not-so-excellent, haunted attractions open during the Halloween season, and occasionally you might even find one open year-round. But Dark Hour is unique, or at least very rare, in offering a different type of show at each season throughout the year. There are eight in all, including Wreck The Halls in December, Love Is Blind in February, and Walpurgisnacht in May. All feature imaginative, cutting edge scare effects, many of them designed and built on the premises, as well as up to 70 live performers. It's 30,000 square feet of imaginative, top-notch thrills and scares any time of year.
If you go:
Open one weekend per month in every month but August, and every weekend during Halloween season. See website for calendar. A Fast Pass is available to reduce waiting time in line. You can also take a 2-hour backstage tour, which is well worth the money to get a fascinating glimpse into the artistry and hard work that go into crafting the scares and effects.
Links:

701 Taylor Drive
Plano, Texas 75074 USA
info@darkhourgroup.com
Phone Numbers:
Information and Reservations
+1 (469) 298-0556
+1 (469) 298-0556