Though the show rarely has a "straight line" plot, this one, I felt, really was like peeling back the layers of an onion. At first, it was just about the ghost hunter and a chance, bad encounter of some sort. Then we learn that he was from New York, and that the McLaren house always creeped him out. Then we meet the (faux??) psychic named Mercedes, aka "Mercy," which just happened to be the last thing the victim said before he died. Then comes the revelation that he had been having dreams about the place, and consulted Mercy for help in uncovering a real, repressed memory. Finally, they wrapped it up by tying that memory back to the last (of many) deaths in the building.
I also enjoyed "the looks." Since I don't watch much TV (well, any other TV), I can't say whether other shows get the actors to express themselves so much with their faces. But the players on "Castle" really do. Looking back at the previous episode, I loved it when Castle did a spit-take, and Ryan glanced up and to the right, watching the spray. Notable "looks" this week:
- Alexis's "WTF" look when Castle had just finished telling her it sent the wrong message to rearrange her life around Ashley, and then rushing off because Beckett called.
- Castle's "yes" look when Beckett said "I ain't afraid of no ghosts."
- Lanie's burn when Ryan's fiancee asked, "When are you two going to get married?" and when Castle asked, "How was the date?"
- And finally, Beckett's skeptical look, every time Castle brought up a paranormal theory. Of course, she gets to use that look a lot.
And finally, I really thought they made good use of cultural references: "Ghostbusters," "Scooby-Doo," and "Poltergeist."