Dexter is an American television Crime/Drama series based on Darkly Dreaming Dexter. Main character Michael C. Hall.
Dexter is a sociopath who doesn't feel things like normal people. He's also a serial killer. He was adopted and raised by a police officer who recognised what he was and, after having a serial killer escape to kill more innocent people, taught him to channel it by only killing other serial killers. He taught him extensively how not to get caught and how to behave like he's normal. He has his adoptive father's teachings or "The Code of Harry" that he follows. He works as a blood splatter analysis with the police department and has access to inside information and knows the techniques they use to catch people. A lot of the show focuses on how it feels to be him and how challenging it is just to appear normal.
Denotation is the first level of analysis: What the audience can visually see on a page. Denotation often refers to something literal, and avoids being a metaphor.
Connotation which is the second level of analysis, being what the denotation represents.
Examples:
Denotation: A Rose
Connotation: Passion and Love
Connotation and Denotation from Dexter's Credit
