Dexter must save a life; Deb has a confrontation with a key suspect; Quinn follows up on the similarities between Dexter and Kyle Butler.

Dexter hires a nanny; Debra is annoyed with her new partner; Quinn continues to investigate Rita's murder.

Dexter discovers a possible ally; homicide uncovers evidence; Debra identifies two more suspects.

Dexter finds himself on a collision course with Debra; a standoff occurs between Debra and the Santa Muerte killers.

Debra uncovers new evidence in the Barrel Girl case; an unexpected guest surprises Dexter.

Dexter is saddled with an unwanted conspirator; Dexter worries about how Rita's death will affect Harrison; Deb works alone; Quinn enlists an old friend's help.

Dexter realizes he is being lured into a trap; Debra lets her personal feelings overwhelm her instincts; Quinn needs Dexter's help.

Dexter is drawn into a precarious situation; Batista discovers an interesting lead; Quinn gets information about Dexter from a questionable source.

Dexter and Lumen stalk a violent killer; Batista makes a difficult decision when Debra gets into some trouble from the fallout of the Santa Muerte case.

Dexter must do damage control; Debra's speculation begins to take shape; Quinn becomes involved in a homicide.