A good friend Dexter

His name is Dexter Morgan.
He is a serial killer, whose credo is cause... sympathy!
A true southerner, a noble gentleman in relationships with women, he kills only "bad guys". His victims are only those who, in his opinion, really deserves to die for their actions, and thus, thanks to him, and justice triumphs.
This time Dexter is confronted with a very unusual serial killer is the one amputates the victim all that is possible, but does not kill them, and deftly escaped punishment.
Dexter, the killer is a virtuoso, one feels a slight sting of envy.
However, no envy and no "professional" rapture unable to keep him from being able to immediately start hunting for the murderer...