The suicide of a wealthy and powerful businesswoman leads Dexter to suspect that her psychologist may have killed her. But Dexter gets a surprise of his own when he pays a visit to the suspect, Dr. Emmett Meridian, a visit which forces Dexter to open up dark secrets from his past. Elsewhere, as Rita becomes warmer to her ex-husband Paul, who claims to be a changed man, she also wants to move forward into intimacy with Dexter, who is afraid of physically consummating their relationship. Meanwhile, Lt. Laguerta's visits to Neil Perry makes her become more ever more skeptical to his claims of being the Ice Truck Killer. Also, Debra's romance with prosthetic specialist Rudy begins to heat up.