About the show:
Orphaned at the age of three and harboring a traumatic secret, Dexter (Michael C. Hall, Six Feet Under) was adopted by a Miami police officer named Harry Morgan (James Remar), who recognized Dexter's sociopathic tendencies and taught him to channel his gruesome passion for thrill killing by giving it a constructive direction: killing people who deserve it. Most have slipped through the justice system, due to loopholes and technicalities in the law or were never apprehended.
To hide in plain sight and to erase his own crimes, Dexter works as a blood spatter analyst for the Miami Metro Police Department. Although his drive to kill is unflinching (otherwise overcome by a feeling of "emptiness") Dexter is, through extensive instruction from Harry, able to fake normal emotions and keep up his appearance as a socially-responsible human being. Flashbacks throughout the series show how Harry instructs Dexter on the art of appearing normal, and he follows Harry's instructions as a sacred "Code of Harry." In accordance with this code, most of Dexter's victims must be killers themselves (though there has also been mention of arsonists, and child molesters), who have killed multiple times with no remorse, and Dexter must have proof that they are definitely guilty before he takes action.
Dexter has a girlfriend, Rita Bennett (Julie Benz), whom he dates in order to appear normal. Rita is psychologically damaged from an abusive ex-husband, a violent felon, and is too distraught to want to be in an intimate relationship. Dexter believes himself unable to fake emotions when that close to a person, and therefore avoids intimate relationships, making the "damaged Rita" the perfect girlfriend. Dexter hopes to keep up the facade of normality by never engaging in a close relationship with her. However, Dexter does have genuine affection for and feels comfortable with Rita and her two children, Astor and Cody.

Main Website: Dexter

Videos: Opening : I'm A Serial Killer