Dexter discovers that the Ice Truck Killer set him up, retrieving one of his disposed corpses and putting it front and center for Miami Metro to see. In addition, a possible witness was on the scene, a lethal combination that could potentially spell doom for our favorite serial killer. For possibly the first time in his life, Dexter is afraid, and he desperately attempts to save himself from discovery. This fear opens a humanity in Dexter that we really haven't seen before, and it's nice to see him as something other than a complete sociopath. In addition, the flashback flesh out Dexter and Deb's sibling relationship, and a previously-unseen resentment rises to the surface. In terms of the episodes to this point, this is the best episode since the pilot.