Dexter Morgan is a Miami police forensics expert who moonlights as a serial killer of criminals who he believes have escaped justice.

Back with a vengeance for a sixth season of startling suspense and unexpected twists. It's been a year since last season's shocking and heartbreaking conclusion, and mild mannered criminologist-cum-grisly serial killer Dexter Morgan has come to terms with who he is. But his existence is shattered when he crosses paths with an enemy unlike any he's faced before. A delusional religious zealot with unflinching convictions, this new adversary soon draws...

In season five, Dexter goes from happily married husband to guilt-ridden single dad. How will it affect his ability to maintain an average-guy facade while satisfying his need to kill?

Dexter is forced to confront his greatest fear, as Debra witnesses his insatiable, ritualistic slaying of a killer. Deb knows the secret of his Dark Passenger, his undeniable thirst for blood, and the Code that their father Harry instilled in him as a young boy. But as Deb tries to reconcile the unfathomable idea that her beloved, mild-mannered brother is Miami's most notorious serial killer, Dexter is still pulled by his impulses to seek out the...