Dexter Morgan, Miami Metro Police Department blood spatter analyst, has a double life. When he’s not helping the Homicide division solve murders, he spends his time hunting and killing bad guys that slip through the justice system.
Dexter's world is rocked when a rival serial murderer, dubbed the Ice Truck Killer, privately contacts him and reveals that he knows Dexter's grisly secret.
While stalking a recently released convict who may kill again, Dexter has to deal with the latest crime of the Ice Truck Killer, a chopped up hooker in a pro-hockey ice rink.
Dexter is intrigued when the Ice Truck Killer starts leaving pictures from Dexter’s childhood at the crime scenes that are meant to tell Dexter something about his own past.
The Ice Truck Killer leaves Dexter a surprise at the scene of one of Dexter’s recent kills, putting Dexter firmly in the crosshairs of his own Homicide division.