Dr. Vogel tells Dexter that Deb was traumatized when she tried to kill him. Now that she's hit rock bottom, things will improve. Dexter isn't too happy with either Vogel or Deb and concentrates on finding serial killer A.J. Yates. Deb and Dexter have another problem when Yates kidnaps Vogel and they set out to rescue her. At the station, the police continue investigating the death of Norma Rivera. She had sex not long before dying and they assume that whoever that was is also the man who killed her. They have a suspect, her former employer Ed Hamilton, who admits to having had sex with her but insists she was alive when he last saw her. Dexter wonders if Hamilton's son Zach might have been involved. Vince Masuka meanwhile has confirmed that Nikki is his daughter and is quite taken by the idea of fatherhood. Quinn warns him to be careful about relatives who appear out of nowhere.