Identical twin demons Jace and Konnor Barton run Tailz, a supernatural-friendly bar in Salem, Massachusetts. The sort of place where things are never dull, on the weekend of a full moon things can get even more interesting. When Jace encounters an angel in distress, he can hardly resist the urge to offer his own special brand of help.

Ariel is an angel with an itch to experience the darker side of earthly life, and he has heard through the grapevine that Jace is the demon for the job. Much to his surprise, Ariel finds out he will be getting both brothers coming to his aid for the price of one.