Watch Dexter Season 4 Episode 5 - Dexter decides to take on the Trinity Killer case on his own; Debra takes the blame for an unforeseen event that she had no control over; and Rita discovers one of Dexter's secrets and begins to question just how much she really knows about her mysterious mate.Watch Dexter S4 E5 Se4 Ep5 s04 e05 405 4x5
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