John Knox

A serial rapist resurfaces in Houston and assaults his past victims; Prentiss attempts to overcome last year's trauma.

Enemies and allies try to figure out what happened on the night of Emily's wedding, while the Graysons attempt to protect their own, closing ranks. Margaux holds photos of the events on the yacht.

One of Foster's former patients turns up dead shortly after expressing concern that she is being squeezed out by a business partner.