Question: What is the name of this American television crime drama mystery series that aired on Showtime from 2006 to 2013, where Hello, Dexter Morgan was the 11th episode of the 4th season?
Sentence (from "Dexter (TV series)"): Set in Miami, the series centers on Dexter Morgan (Michael C. Hall), a forensic technician specializing in blood spatter pattern analysis for the fictional Miami Metro Police Department, who leads a secret parallel life as a vigilante serial killer, hunting down murderers who have slipped through the cracks of the justice system.
Relevant evidence: No