Dexter is a serial killer who works at the Miami-Metro police department. His Sargent is Angel Batista, his sister Debra also works with him Uh hey, you a new recruit? Dexter asks as he smiles awkwardly Debra: Dex, this is the new recruit! They'll be working with you in forensics but will also be Quins partner Debra says as she shows him his new helper. Joseph Quin is a tall lean man from New York. He's a bit of a jerk but you'll be working with him or Dexter