
Dexter: "If God is in the details, and if I believed in God, then he's in this room with me. I just wish he'd brought an extension cord."
The title of the episode is about monsters beneath the surface. Dexter sees himself as a monster who goes after other monsters. There were several images of just the top half of Dexter's face, in the ocean, in the tub, in the mirror of the men's room. Dexter's hidden monster below the surface is the bottom half of his psyche, ever present and in charge but unseen by others. (Rita even called Dexter the "Cookie Monster." What clever writing.)