Dexter

My wife and I absolutely loved this show. Just watch it if you enjoy very dark, suspenseful stuff with good characters and almost a casual light attitude even though the whole thing is so dark and gory. I just need to warn you, stop watching after season 5. I loved season 5 but after that my wife and I were devastated by the last seasons. We think it went down the wrong path and ruined the show for us. Go through season 5 and then just read the endings of the next seasons on some blog or something and forget about watching it. This will make your memories of the show stay great. Trust me, don't watch those final seasons.