Sharona: So why?
Captain Stottlemeyer: Love and money, the oldest motive in the world. Chloe met Wolff when he was doing security for her, and they hooked up, as the kids would say.
Lieutenant Disher: The divorce would have cost her $10 million.
Sharona: So they were planning this for, like, a year?
Adrian Monk: Exactly. Kurt didn't build the panic room to protect Ian Blackburn. He built it to kill him.
Captain Stottlemeyer: The plan was to make it look like a suicide.
Adrian Monk: It was a brilliant plan. That night Wolff snuck into the panic room. He set the test alarm button, so the alarm rang, but only inside the house. That's how he lured Ian into the panic room. The plan was for Ian to be found dead the next day in a locked room.
Captain Stottlemeyer: Everybody would think that he killed himself. There would be no other explanation.
Lieutenant Disher: It was a perfect plan.
Adrian Monk: Not quite perfect. They didn't count on one thing.
Sharona: Darwin.
Captain Stottlemeyer: Darwin must have grabbed for the gun, and there was a struggle.
Adrian Monk: Ian was shot four times, twice in the back.
Captain Stottlemeyer: Their suicide story wasn't going to fly.
Sharona: So he framed Darwin?
Adrian Monk: Well, it was a long shot, but what else could he do? Of course, now he had to explain what Ian was doing in the panic room, so as he left, he broke a window to make it look like a burglar had tried to get in.
Captain Stottlemeyer: And that's how we found it. Broken window, killer monkey.