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.

John Barrowman, Eve Myles, Burn Gorman
Seasons: 1-2
Network: BBC2

Story: The raunchier and more adult "Doctor Who" spin--off follows the colorful team members of the Torchwood Institute based in Cardiff who investigate and police assorted alien and human temporal activity on Earth.