Noelle Winters: Is your wife here?
Adrian Monk: I'm not married.
Noelle Winters: You're wearing a ring.
Adrian Monk: She passed away. I can't bring myself to take it off yet.
Noelle Winters: Oh, I'm sorry. When did she die?
Adrian Monk: Six years ago.
The fan letter Monk wrote to shirt Inspector 8, shown in close-up where it hangs on her work station wall, consists of the same paragraph printed out twice.
According to co-producer Tom Scharpling, the Mexican homicide cops are purposely written as parodies of Stottlemeyer and Disher, right down to their attitudes, their ranks, their suits, and Captain Alameda's mustache. Even the bumbling lieutenant's name is a little joke on Disher. Plato means "dish" in Spanish.