Dexter: The Third Season [Blu-ray] for $24.99

Showtime's breakout hit series Dexter, about a lovable psychopath, a serial killer who targets only the scummiest of the scum, hits its stride in season 3. Dexter Morgan, played with nuance and glee by the outstanding Michael C. Hall, begins the season somewhat chastened by the events of the previous season--where whiffs of his secret life became known to others and he was nearly found out. "I need to find out what it's like just to be normal. If that's something that's even possible for me," he muses, as he tries to settle in to domestic life with girlfriend Rita (the baby-voiced Julie Benz) and her kids.