Dexter's world may come crashing down around him this Sunday.
On Dexter's Season 7 finale (9/8c, Showtime), the series' titular serial killer will have to face the possibility that Hannah (Yvonne Strahovski), whom Dexter (Michael C. Hall) turned in to the cops last week, may decide to retaliate and turn her former beloved in as well. But she could be the least of his worries now that Hector Estrada, the man who ordered the hit on his mother, was able to escape. Will Hector turn to La Guerta (Lauren Velez) lest Dexter find him first? TVGuide.com turned to Hall to find out what's in store for America's favorite serial killer: