Dr. Kroger: I'm really frightened. I don't know what's going on.
Adrian Monk: Okay. Okay, do you see those figurines? Check the label. They're from Turkey. That one in the corner, it's cracked. Obviously ruined. Why didn't he throw it out?
Dr. Kroger: Drugs? [Monk nods] But what does that have to do with Teresa?
Adrian Monk: I think Teresa broke that figurine. I remember, after we found the body, I asked Lieutenant Disher if he'd checked the vacuum cleaner. He said the bag was completely empty. But think about it. The bag couldn't have been empty if she had been vacuuming rugs all night.
Dr. Kroger: I'm- I'm not following you.
Adrian Monk: On Thursday night, Teresa was cleaning Merrigan's office. She must have knocked over that figurine. It broke open. It was filled with powder.
Dr. Kroger: Heroin?
Adrian Monk: She had no idea. She just vacuumed it up and moved on to the next office, your office. Meanwhile, Merrigan comes back. He sees the broken figurine. He figured out what happened. He knewsome where in that building was a vacuum cleaner bag filled with heroin. He went looking for Teresa, and caught up with her in your office. Merrigan must have checked the bag to make sure the heroin was still there. Once he found it, he couldn't just let her go. She had seen too much. Then, he rifled through your files threw a rock at your house, so everybody would think it was one of your patients.
Dr. Kroger: Everyone did. Everybody except you. Adrian, I hope someday I'm as good at my job as you are at yours.