Michael C. Hall, Jennifer Carpenter, Julie Benz
Seasons: 1-2
Network: Showtime

Story: Dexter Morgan works for the Miami Metro Police Department as a blood pattern analyst. That's just his day job, at night he's a serial killer who goes around killing off some of societies less desirable elements.

Lee Pace, Anna Friel, Kristin Chenoweth
Seasons: 1
Network: The CW

Story: A pie maker gifted with the ability to bring dead things back to life briefly by touching them goes around finding out who killed murder victims by asking the corpses themselves, and then collecting the reward.

Michael Chiklis, Benito Martinez, CCH Pounder
Seasons: 1-6
Network: FX

Story: Focuses on the tension between a group of corrupt but brutally effective cops & assault team members; the honest detectives caught in the middle who play both sides; and a police captain torn over his job and his ambitions.