THE HALLOWEEN COSTUME PARTY @ ABIGAIL Halloween Weekend 2021 in D.C. is shaping up to be one of the most insane holidays of the year. Remember going door-to-door trick or treating every Halloween? Well the impressive grown up version is clubbing for Halloween! 21+ Event Open bar until 12am. Complimentary Entry Until Midnight VIP Tables starting at $1000 min spend + tax/gratuity.