Dexter - Season 4 - Eps 7: Slack Tide
Dexter finds himself enjoying a brief moment of tranquility. He's finally managed to strike a balance between work, family... and other pursuits. But he's keenly aware that times like these aren't meant to last. When Miami Metro discovers a string of murders connected to a prominent photographer, Dexter sees an opportunity for a clean kill. However, his plans seem to be thwarted every step of the way. Quinn has taken a renewed interest in Dexter's nightlife. Dexter's plans to keep Astor and Cody distracted with new activities soon backfire. Even Harry disapproves of Dexter's choice of pastime, urging him instead to focus his efforts on the Trinity Killer. Meanwhile, Debra returns to work, frustrated to find everyone treating her with kid gloves. She decides to concentrate on her pursuit of the Trinity Killer as well as delving into her father's checkered past - investigations which Dexter fears might lead her to danger - or worse, the truth.
About Dexter

Title: Dexter
First Air Date: 2006-10-01
Last Air Date: 2013-09-22
Status: Ended
Rating: 8.211/10 (from 4604 votes)
Language: EN
Seasons: 9
Total Episodes: 96
Network: Showtime
Genres: Crime, Drama, Mystery
Production Companies: Showtime Networks, John Goldwyn Productions, The Colleton Company, Clyde Phillips Productions, Devilina Productions
Synopsis
Dexter Morgan, a blood spatter pattern analyst for the Miami Metro Police also leads a secret life as a serial killer, hunting down criminals who have slipped through the cracks of justice.
Cast

Michael C. Hall
Dexter Morgan

Jennifer Carpenter
Debra Morgan

Geoff Pierson
Thomas Matthews

David Zayas
Angel Batista

James Remar
Harry Morgan

Aimee Garcia
Jamie Batista

Desmond Harrington
Joseph Quinn

C.S. Lee
Vince Masuka