Danger arrives to Miami Metro. Dexter continues to try and lure Travis in while Deb continues to see her therapist.
The mirror-match continues. Travis enlists some new acolytes. Miami Metro gets two new breaks. Dexter finds himself in hot water, confused about what to do with Wormwood.
In order to solve the mysterious murders, Homicide asks for the help of Brother Sam, who Dexter knows used to be a serial killer. Debra has two proposals, one personal and one job-related.moreless
Dexter uses his 20 year high school reunion as a chance to hunt the prom king. It's going fine until he is called to the scene of a vicious faith-based murder leaving him with questions about what he wants to pass on to Harrison. Debra who is finally in a good place with her relationship with Quinn and her job becomes an unexpected hero.