Bob's skull (with Bob in it) is stolen, by a "copy" of Uncle Justin, so that he can get Bob to use his special talents to resurrect the real (albeit dead) Uncle Justin. This requires not only Bob's expertise, but also bribing Bob to betray Harry in order to escape his eternal punishment as a ghost in his own skull.
Meanwhile, an anonymous tipster has Murphy and the CPD thinking that Harry actually killed his uncle five years ago (which of course he did). Justin's body is exhumed, and evidence is discovered that is not at all good for our hero Harry.
We get more scenes from Harry's past, explaining the backstory of his Dad, his Mom, and his Uncle, along with his entire family history. The entire episode feels like a "very special" event that ties the entire series together.
Will Bob betray Harry to win his release? Will Murphy figure out what Harry actually is? Sorry, no spoilers here. But this is one of my favorite episodes, albeit one that requires you've seen most of the previous ones to understand it. 9 out of 10 on the IMDb scale.
