Genre: Mystery

Dexter undertakes to teach Miguel the Code, but doesn't realize he's whetting his partner's thirst for blood. Meanwhile, Debra is one step closer to finding the Skinner but a secret revealed about Anton sends him packing.

Dexter angers Miguel when he says no to his latest offer, who's unsure the next target lives up (or down) to Harry's Code. Meanwhile, an elderly, deathly ill Camilla asks Dexter to kill her, insisting she would never ask a friend to do something against his conscience. Also, Rita discovers that Sylvia believes her husband Miguel has had an affair; and Anton is told he is bait to get at Skinner.

Dexter tests Miguel to see if he is on his dark-side job. Rita questions her career path after being fired from her job. Debra believes she in some way caused another homicide while working on her current case.

As Dexter struggles when Rita pushes to move in together before getting married, Miguel tells Dexter that a husband has murdered his two wives for a financial gain and gotten away with it. Dexter finds this to be the perfect candidate to get away and satisfy that dark urge which every man with relationship pressures go through. Dexter tracks the murderer to Bimini. While he is on the hunt, Rita disappears due to a medical emergency. Meanwhile, Debra works with Anton, her confidential informant to track down one of Freebo’s criminal confidants. But Oddly enough Debra finds herself attracted to Anton.