It's 1989, and Joe Agabian and his best friend Ronnie set out to spend their first summer working in the hedonistic gay paradise of Fire Island Pines. Joe is desperate to let loose and finally move beyond the heartbreak of having lost his boyfriend to the HIV/AIDS epidemic. The two friends are quickly taken in by a pair of quirky, older house cleaners. But something seems off, and Joe starts to suspect the two older men of being up to something otherworldly. In truth, Howie and Lenny are members of a secret disco witch coven tasked with protecting the island-and young men like Joe-from the relentless tragedies ravaging their community.
The only problem is, having lost too many of their fellow witches to the epidemic, the coven's protective powers have been seriously damaged. Unaware of all the mystical shenanigans going on, Joe starts to fall for the super-cute bisexual ferryman who just happens to have webbed feet and an unusual ability to hold his breath underwater. But Joe's longing to find love is tripped up by his own troublesome past as well as the lure of a mysterious hunk he keeps seeing around the island-a man Howie and Lenny warn may be a harbinger of impending doom. The Disco Witches need to find help fast if they're to save Joe and the island from the Great Darkness. But how?
