While preparing himself for his and Ritas big day, Dexter has to figure out how he can remove Miguel from his life once and for all - a task that may prove difficult, seeing as Miguel is not only a highly placed District Attorney, but his Best Man. Meanwhile, Rita has her own troubles, when Syl (Miguels wife) reveals that Miguel has been seeing one of his old lovers. Simultaneously, Debra is closing in on the Skinner.