There is another victim of the phantom arsonist, the fifth in two weeks. Dexter thinks has a pretty good idea who is behind it. He is frustrated because he promised Deb not to interfere in police cases. He tries to explain his dark passenger to Hannah but they're interrupted by a man peeking through the window - who turns out to be Hannah's father who has just been released from prison. He wasn't a very good father - he once left her alone in a motel room for three days while he went off to play poker. He seems to have reformed but after she refuses him a loan he ...