Dexter arrives at his high school reunion with the intention of confronting the arrogant former prom king. An investigation into a heinous murder with religious overtones leads Dexter to ruminate on spiritual matters and consider his son’s legacy.

Dexter is lured into a trap. Quinn puts his personal feelings about Dexter aside in order to ask for his help. Deb allows her emotions cloud her judgment.

Damage control becomes Dexter’s latest personal assignment, while Deb’s speculation grows. In the meantime, a murder is tied to Quinn.

Miami Metro uncovers more evidence in their ongoing investigations, and Debra names two suspects. Dexter, meanwhile, comes across a possible ally.

Dexter and Lumen are distracted from their mission by a visitor. A new investigation, that of the Barrel Girl, is sparked in Miami, and Deb, freshly reassigned to the file room, digs up novel evidence.

A like-able Miami police forensics expert moonlights as a serial killer of criminals who he believes have escaped justice.

By aiding Lumen, Dexter puts himself on a collision course with Debra and the homicide division, and things get worse when he’s brought in to work a horrific crime scene; Debra’s investigation into the Santa Muerte killings leads her into a deadly confrontation with the killers.

Striving to bring some normalcy back into his shattered life, Dexter figures the answer lies in finding a new serial killer to bring down, but his quest gets thrown off course when his troubled new acquaintance requires his help. Meanwhile, Batista uncovers a revealing new lead in the Santa Muerta homicides, and Quinn gets a [...]

Dexter catches a mysterious woman who may have witnessed him in the act of killing a killer; Deb has a frightening run-in with a murder suspect in the Santa Muerte homicides; and Quinn uncovers more striking similarities between Kyle Butler and Dexter Morgan.