There's really not much to know tbh: a street rat finds a vampire and brings him home, the vampire saves him and teaches the street rat how to play with guns, much stuff happens, the vampire has a huge issue about being a vampire, flees, the street rat becomes a mob boss and gets married, the vampire returns, people die, street rat nearly dies but vampire saves him and then they all die.

That's it. And yes, more flirting to come!