[fantasy:]
Trudy: We both know what's happening here, Adrian. You're having what Dr. Kroger would call a psychotic break. It's a defense mechanism. How long do you have?
Adrian Monk: Uh, there's about 50 cubic feet of air in the coffin. 35 minutes, maybe 40. Let's talk about something else.
Trudy: How did you know it was the gravedigger?
Adrian Monk: I noticed the stamp on the back of his hand. At the time, I didn't think anything about it. But then later, I saw the exact same stamp on Natalie's hand.
Trudy: So you knew Chris Downey had been to the museum.
Adrian Monk: That's right. He stole Sonny Chow's hairbrush. Because he needed Chow's DNA, so he could frame him for murder.
Trudy: But why Sonny Chow?
Adrian Monk: So the police would exhume his body. It all started six years ago. I remember the case. Downey had stolen half a million in jewels from a courier. During the getaway, he assaulted an off-duty cop. He was convicted on the assault, but they couldn't get him on the robbery.
Trudy: They never found the diamonds.
Adrian Monk: Exactly. He was working here at the cemetery. Before he went home, he must've stopped here and hid the jewels.
Trudy: Where?
Adrian Monk: In Sonny Chow's coffin. It was perfect. Chow was scheduled to be buried the next day. Downey figured he could always come back and dig it up. Even five or six years later.
Trudy: You felt 'em in the pillowcase. You felt 'em when Natalie hit you in the back.
Adrian Monk: That's right.