Dexter finds himself in a strange new world when he attempts to hire a nanny for Harrison so he can continue to stalk and kill his next victim. Meanwhile, Debra, who takes the lead on a bizarre double homicide, is displeased when Batista suggests bringing in an annoying rookie officer who has her own theories on the case. Things heat up for Dexter when Quinn notices strange similarities between Trinity Killer suspect, 'Kyle Butler' and Dexter Morgan.