Incredible episode. So many jaw-dropping moments. This is perhaps the most emotional and open we've ever seen Dexter. Seeing him near tears when telling Lumen it wasn't too late for her to walk away and have a normal life was surprisingly moving. And I've found myself totally drawn in and invested in this relationship between Dexter and Lumen. I really want her to accept him and for them to be partners... even though deep down I suspect Lumen, one way or another, won't last beyond this season.
The dynamics between Dexter and Jordan Chase were also really fascinating in this episode. Chase has taken a real interest in Dexter, and we arguably haven't seen anyone systematically break down Dexter and get inside his head the way Chase did onstage during the seminar. Despite the inevitable post-Trinity slump in the villain department, Chase is emerging as a surprisingly compelling threat.
But is Chase really the Big Bad? I actually don't think so. There is still the mysterious, unidentified person in the photograph to consider. Could they be the true mastermind of all this, whoever they are? And I actually wouldn't be surprised if Chase is dispatched and the whole "Get revenge on the rape/torture/murder gang" storyline is wrapped up before season's end, and the REAL climactic season arc emerges as Quinn and Liddy's investigation into Dexter coming perilously close to uncovering his true nature. I haven't been so genuinely shocked by an ending to Dexter since last season's finale.