[Spoilers ahead ... ]

Among my favorite scenes:

• Elias's first conversation with Rossi, in which Elias tells Rossi that he know how he thinks, all of his moves, because he has avidly read all of Rossi's books.  How's that for a cool meta-piece of television?
• The ensuing conversations between Elias and Rossi, in which Elias makes fun of Rossi because of his age, saying he'd been hoping to meet and have a conversation and go head-to-head with the Rossi who wrote all of those books, but instead Elias got sent the "AARP" version of Rossi.
• And, though I didn't like to see this, because I'm rooting for the BAU, I have to admit it was a powerful scene when Elias tells Rossi that of course Elias is not worried about Rossie, because Elias can easily take a 70-year-old man.  And those indeed make Rossi his prisoner.

Elias Voit is clearly one hell of a clever serial killer, and this is making for one of the impressive seasons in the long run of Criminal Minds.  The series has more than regained whatever steam it may have lost.  Next week will be this season's finale, and I'm looking forward to many more.