Due to the large number of ghosts they can hold, haunted houses are consistently scarier than cursed sleeping bags, possessed lean-tos, and ectoplasmic studio apartments. Get a full-size fright with today's Groupon to Full Moon Productions. Choose from the following options:

• For $10, you get a single admission to Macabre Cinema (a $20 value). This option is valid anytime in September or October.
• For $10, you get a single admission to The Chambers of Edgar Allan Poe (a $20 value). This option is valid anytime in September or October.
For $40, you get a single admission to all four of Full Moon Productions’ haunted houses: The Beast, The Edge of Hell, Macabre Cinema, and The Chambers of Edgar Allan Poe (an $80 value). This option is valid only during the month of September.

Full Moon Productions sends shivers and tickles of terror up spines with four haunted attractions. Classic- and contemporary-horror flicks jump off the screen into hair-raising reality at the Macabre Cinema, a 1930s movie palace that includes sets from Hellraiser and other movies. Frightful cinematic characters dwell among the seats and scrims, waiting to elicit particularly desperate screams from hapless couples that thought they were there to see Gigli. The Chambers of Edgar Allan Poe revisits the brilliant author’s ominous imagination inside an actual supposed haunted building, as profiled on the Discovery Channel’s Ghost Lab. The most horrifying excerpts from Poe’s famous tales are re-created to saddle visitors with unsettling sensations, such as being buried alive or moving back in with your parents.

The Beast, one of America’s largest haunted houses, immerses guests in a fear ambush across a pitch-black Werewolf Forest, a mind-bending maze, and the streets of Jack the Ripper’s London. Two blocks away, The Edge of Hell’s gaping maw lures cursed wanderers into a five-story warehouse replete with a 20-foot live python and 45 live performers, many of whom use their training to moonlight in local nightmares. Visitors to both houses cap their 30- to 45-minute dreadful tours by escaping down a multistory slide back to earth.

If the frights come too quickly and startlingly, staff will gladly escort jabbering guests out of living nightmares to the night outside. Proceeds from the Macabre Cinema and The Chambers of Edgar Allan Poe benefit the Dream Factory of Greater Kansas City, a charity that realizes the dreams of seriously and chronically ill children.