Dexter does a web search on Farrow (on Tinselweb! The #1 web source for...tinsel), and then it's off to his studio, where Farrow's assistant is locking up for the night. Once he's gone, Dexter breaks in and finds the proofs from Estrella's shoot. Quite a few provocative photos that may have been artistic sadism or may have been documentation of a murder. Dex then takes out his handy black light and starts searching for fluid stains. Who parties harder than Dexter Morgan, you know? He, of course, does find one head-sized blood stain, accompanied by a steady trickle, leading to the wall. And it's there that Dex finds a fingernail embedded in the exposed brick. He takes the nail back to the morgue and matches it to Estrella's hand. Doesn't look good for Farrow.
Back in Trinity's basement, Arthur mirthlessly planes down the tree from this morning into planks. This happens a lot in this second half of the episode, without much variation. I shall try to keep you apprised of his progress. For now, still sanding it down.
Debra meets with her slattern of choice in the Miami Metro courtyard. The woman, Valerie, is decked out in some purple hippie-patterned halter that suggest she may not have changed clothes since her days of banging Harry. And bang she did. Val (can I call her Val?) is under the impression that Miami Metro wants to start paying her to be an informant again, but Deb's like, "Uh, no, but you can tell me if you were having a romantic relationship with my dad." Val doesn't think romance had much to do with it, but she was "one of Harry's girls." Deb's grossed out at that thought, as you can imagine. Seems Harry "picked the C.I.s based on how good we were in the sack." Before Val can continue describing the ways she'd drive Harry wild, Deb cuts the meeting short and hustles the fuck away.
Deb flees to Dexter's office and starts unspooling (though by Deb's standards it's a minor unspooling) about how all this information about Harry is too much to take. Dexter's nerves are soothed when he realizes all this fuss is because Harry was fucking Valerie (as opposed to Laura). Kind of hilariously, Harry shows up acting all penitent and somber, like he's giving a press conference resigning the governorship of South Carolina (uh, for example). "We all have secrets, Deb," Dexter says, self-servingly. "Some of them shouldn't be found out." Deb says she doesn't have secrets like that (Dex lies that he doesn't either), but she's gonna leave it alone anyway. She drops the stack of C.I. files on Dexter's table (Laura's image on the tippy-top), and Dexter hastily tells her he'll return them for her. Deb thanks him and leaves. "Return them" to the shredder, he means. At least in the case of Laura's file. He starts to do the same with her photo, but he gets halfway before he yanks it back out. He can't see her get cut up again. He places the half-torn photo in his drawer, where it will one day come back to haunt him but serious.