Forensics analyst Dexter Morgan hides his life as a serial killer from his sister, co-workers and girlfriend.
A rival serial killer, dubbed the Ice Truck Killer by the media, privately contacts Dexter and reveals that he knows his grisly secret; meanwhile his sister, Debra, is transferred to the homicide section.
Dexter must deal with a dismembered hooker found in a hockey rink while he stalks a recently released murderer who may kill again.
The Ice Truck Killer begins leaving victims' body parts at sites that relate to Dexter's childhood, forcing the forensics analyst to confront his own dark history.
The Ice Truck Killer's latest victim is alive; Dexter stalks a human-trafficker.
The Ice Truck Killer leaves a surprise at a crime scene for Dexter.
The identity of the Ice Truck Killer does not sit well with Dexter; Rita's ex-husband returns.
A high-profile woman's presumed suicide reveals a strange pattern of murders, leading Dexter to stalk a killer unlike any other.
Rita, Debra and Rudy join Dexter for a weekend away when he learns that his biological father has just passed away.
The Ice Truck Killer leaves Dexter the most-awful crime scene imaginable, forcing him to confront a suppressed memory.
The Ice Truck Killer lures Dexter into a trap by kidnapping someone close to him.