1. Are You...?

Having been caught in the act of eliminating Travis Marshall by his sister Deb, Dexter has to scramble to come up with an explanation. Deb is understandably shaken by what she's just seen but accepts, somewhat reluctantly, Dexter 's explanation that he's suffered momentary madness. As she thinks about it, Dexter 's explanation makes no sense and decides to dig deeper. Captain LaGuerta meanwhile is puzzled by a piece of evidence she found at the scene of the Marshall killing. When a member of the homicide squad is killed, Dexter goes all out to stop the killer before he ...

Plot summary and ending

Spoilers ahead. Coverage follows the scope labeled below.

Complete story — includes the ending

After witnessing Dexter kill Travis Marshall, a shocked and reluctant Debra helps him cover up the murder by setting fire to the church. The following night, Detective Mike Anderson is murdered by a member of the Ukrainian mafia after finding a dead prostitute in his trunk. Dexter identifies the murderer as Viktor Baskov (Enver Gjokaj) and later kills him. Quinn and Batista begin to make amends as they investigate the Anderson and prostitute murders. Meanwhile, Louis Greene hacks into Dexter's computer and cancels all his credit cards as the first phase of his revenge against Dexter. LaGuerta begins investigating a blood slide Dexter accidentally left at the church. Increasingly suspicious of Dexter, Debra ransacks his apartment and discovers his knives and blood slides, forcing Dexter to admit to her that he is a serial killer.

Sources and content license

Source and revision history · Adapted from Wikipedia contributors, Dexter season 7. HTML formatting and reference markers removed. · Content license