Dante is a witch (warlock, actually) who's been living with his vampire friend Phineas since he can remember. He does magic for paying customers in their apartment by day, while Phineas deals a supernatural drug to the desperate by night. Dante is, reluctantly, Phineas's best customer, needing the drug to control his attacks when his illness, called the Demon Curse, kicks in. Dante isn't the only one suffering this affliction; he got it from his parents, his mom having passed from it well before he can remember, and his dad passing when he was ten. He knows he will eventually die from the illness, too, but he's still got some time left on the clock. Besides, he's a witch (warlock), one of the most powerful in the city, and could easily find a cure. Except that it turns out, the Demon Curse is actually as its name states. He is cursed with this, and there's someone on the other end waiting to collect his soul when he finally passes from it.