Deb wants to know the plan, but Dexter won't share, so she gets into bed and grumpily says this isn't how she ever imagining spending that night, and given that Dexter is in the process of removing his shirt, I have to say I'm SO GLAD TO HEAR IT. But what follows is an adorable character-building scene in which the two of them reminisce about trips they took to Myrtle Beach to visit their maternal aunt. With just the bedside lamp on, Deb recalls that Dexter kept watch over her all day, and Dexter takes a moment before replying that he didn't want Deb to drown. Deb turns to regard him and admits that Dexter was her hero, and in that simple little scene we can understand how Deb might be realizing that Dexter still is, at least partially, the same person she's always known, even as she comes to terms with the other things he is.
On the beach the next day, we see Hannah sitting in a nearby car fanning herself as Batista complains that it's sweltering even with the ocean breeze. Dexter thinks that since they located the motel Hannah and Randall stayed at, their odds of finding the bodies are good, and then Batista turns the conversation to his new favorite topic by asking Dexter if he thinks the bartender at the strip club killed himself. Dexter rattles off the forensic evidence, but before Batista can reply, he gets bitten by a bug and goes to get some spray out of his car, leaving Hannah open to come over to talk to Dexter. She wonders how Dexter can do his job, remembering that the first time Randall killed someone, she froze with horror upon seeing all the blood. Dexter reminisces about the first crime scene he ever worked -- a woman had stabbed her husband after fixing him a sandwich. Well, if he complained about her being out of Miracle Whip, I could understand. Hannah makes the subtext into text as she observes that the two of them are swapping gore stories like they're on a date sharing their first sexual experiences, but before the bloody talk gets them so hot they pass out, a barking police dog signals to Dexter that he's got some work to do.
And he's not the only one, as Deb is just getting to Barnes's family's house -- when LaGuerta pulls up to join her. Uh oh. LaGuerta explains that the errand she went on turned out to be a bust, and since this was on her way back to the station, she thought she'd sit in. Not having an elevator handy, Deb takes this in stride. When they ring the bell, a teenaged boy answers (well, the actor, Bubba Smith, is 23, but he looks younger; also, he apparently played Simon in the American remake of The Inbetweeners, which I will not be watching) and tells them his mom got called into work, but he'd be happy to try to answer any questions if that'd be of interest. Deb's "No thanks!" is trumped by LaGuerta's "Awesome!" so in they go.