Dexter

Dexter's signature 'kill room' ritual involves tranquilizing victims with M99 or ketamine, wrapping them in plastic, engaging in a monologue, and then brutally stabbing them, often followed by dismemberment. The series frequently displays detailed blood spatter analysis as part of Dexter's day job, and crime scenes are often highly graphic, featuring dismembered bodies and large pools of blood, such as the modus operandi of the Ice Truck Killer in Season 1, who leaves severed, bloodless body parts for Dexter to find.

Dexter engages in multiple romantic and sexual relationships throughout the series, notably with Rita Bennett, Lila West, and Hannah McKay, which include scenes of sexual intimacy. The show features both full and partial nudity, particularly female, in various contexts. For example, scenes depicting marital relations between Dexter and Rita, or the more passionate and at times illicit encounters between Dexter and Lila or Hannah, often contain implied to explicit sexual activity. Discussions in fan communities confirm the presence of numerous sex scenes, some of which are described as explicit or uncomfortable to watch with family.

Debra Morgan is characterized by her almost constant use of strong language, including frequent use of the 'f-word' and variations such as 'Jesus fucking Christ'. Other characters also regularly use strong profanity like 'shit', 'damn', and 'hell'. For instance, Debra exclaims, 'Oh Jesus fucking Christ, Dexter!' in various stressful or shocking situations, making her one of the most vocally profane characters on television. Profanity is woven into the everyday dialogue of the police department and personal interactions.

Dexter's inner monologues frequently delve into dark and disturbing thoughts, revealing his homicidal urges and detachment from humanity, creating a constant sense of unease. The show graphically depicts crime scenes, including dismembered bodies, pools of blood, and the victims of various serial killers, which can be highly disturbing. Flashbacks to Dexter's traumatic childhood, particularly witnessing his mother's brutal murder in a shipping container, are recurrent and intensely disturbing, shaping his psychological state and providing a foundational 'horror' element to his origin story.

Dexter's entire existence as a vigilante serial killer is an act of profound rebellion against the justice system and societal laws, operating under his own moral code to punish those he deems deserving. His inner monologue often expresses disdain for societal conventions and superficial human interactions. Debra Morgan consistently exhibits disrespect, using aggressive language and a confrontational attitude towards colleagues, superiors, and even Dexter. Her frequent outbursts and disregard for formal decorum in professional settings, such as her swearing at Captain LaGuerta or other detectives, are common occurrences.