Step into the shadows and make GHOST your destination for 40 Days of Night - a Halloween pop-up hidden beneath Larimer Square. The limited-run series delivers forty consecutive nights of genre-bending DJs, immersive themes, and surprise guests. Expect Trap Thursdays, bass-heavy Fridays, house-driven Saturdays, and midweek cult-classic moments—plus costume takeovers, photo installs, and late-night afterparties.