Dexter mishandles crucial evidence in a case. His carelessness could come back to haunt him and impact Agent Lundy\’s investigation into the latest Trinity Killer slayings.

Dexter has to fit the newborn baby into his complex life. An old serial killer returns to Miami, and Frank Lundy returns to close the case.

Dexter’s focus shifts to calming his emotionally unstable brother, Ramon, now that Miguel out of the picture. Now tha Ramon has calmed down, Dexter feels he can breathe once again. All that is left no

While preparing for his big wedding day, Dexter has to figure out a way to remove Miguel from his life for good. But how does Dexter manage to do this when Miguel is not only a highly placed D.A., but

Dexter and Miguel compete for the upper hand; Miguel presents Rita with a lavish gift; Debra questions her relationship with Anton.

Dexter and Miguel\’s friendship is strained; Rita wants to confront Miguel; Debra searches furiously for Anton.

Dexter tries to teach Miguel the “code\’\’; Debra is closer to finding the skinner.

Dexter and Miguel have differences in selecting a new victim; Rita discovers that Miguel\’s wife has suspicions; an old friend asks for Dexter\’s help.

Miguel is put to the test by Dexter. Rita is forced to reconsider her choices. Debra begins to feel like she had some part to play in a homicide case she\’s working on.

While Dexter struggles with how to handle Rita’s desire for them to move in together before they get married, Miguel tells Dexter about a husband who has gotten away with killing two of his wives for