Captain Stottlemeyer: Mr. Monk why don't you tell us why we're all here?
Adrian Monk: Paul Harley killed his girlfriend Larysa Zeryeva. He cut her up and dumped her body into the bay. He cleaned his house. He scrubbed, he dusted. He wiped away any trace of her until she disappeared. And then he must've found something, a piece of paper that scared him half to death.
Commissioner Brooks: Well, what was it?
Lieutenant Disher: It was a receipt from the hair outlet on 24th street. They make wigs from human hair.
Adrian Monk: Larysa had very long hair. A month before she was murdered, she cut it all off. We all saw the picture.
Sharona: She sold her hair to a wigmaker. Lots of women do that.
Commissioner Brooks: The Hair Outlet? Isn't that the place that...
Captain Stottlemeyer: That burned down last week. That's right.
Adrian Monk: Harley was in trouble. He knew there was a wig out there somewhere made from Larysa's hair. A wig full of her DNA.
Captain Stottlemeyer: He had to get it back before we tracked it down.
Adrian Monk: So he broke into the hair outlet, killed the owner and he rifled through the sales receipts until he found what he needed. And then destroyed the evidence. Or tried to.
Captain Stottlemeyer: We got lucky. Some of the records survived the fire. We know who bought Larysa's hair.
Commissioner Brooks: So, who is it? Where's the wig?
Captain Stottlemeyer: It's not a wig. It's a toupee.
Commissioner Brooks: Hmm.
Captain Stottlemeyer: It's your toupee, sir.