Dexter and Lumen take the opportunity to track a vicious murderer while attending a self-help seminar from Jordan Chase. Meanwhile, the fallout from the aborted sting in the Santa Muerte homicides puts Debra in hot water and places Batista in a difficult situation as she tries to shift the blame away from herself and onto Debra. Things tense up between Quinn and Liddy as Liddy begins to grow more obsessive and greedy.