Sinister Soiree
Saturday, October 31, 2026 · 9:30 PM EDT · Rainmaker Expo Center · Mashantucket, CT
NightlifeHolidayDance
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About this event
Sinister Soirée is back and bigger than ever in 2026! Creep, float or crawl on over to our annual Halloween Party on October 31st at the Rainmaker Expo Center! Mingle with our celebrity host, enjoy spooky signature cocktails, strut your stuff in the costume contest, and dance the night away (21+ Event) For full set of rules, please visit www.foxwoods.com