An emergency with Harrison has Dexter leaning on Brother Sam for support as he questions the idea of faith. But when confronted with Gellar and Travis' next awful tableau, Dexter is forced to ask if faith, in the wrong hands, is deadly. With proof of a religiously motivated killer, Homicide hunts for a zealot, with Debra giving her first official Press Conference. A winged messenger has an unexpected revelation for Dexter.
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