The fourth season of this crime comedy had everything fall into place, as the characters started to finally feel like a family. Tony Shalhoub's chemistry with Traylor Howard is now the heart of the show and the cases have begun to get considerably more outlandish.
This season had several classic episodes that I would put in a "Best Of" collection. There was "Mr. Monk Goes Home Again," which saw the return of John Turturro as Monk's brother Ambrose as the two wait for their estranged father to return home on Halloween. Also, "Mr. Monk Goes to a Fashion Show," with guest star Malcolm McDowell as a deadly fashion mogul. Of course, this season also had the most heartbreaking episode so far. "Mr. Monk and Mrs. Monk" introduced the idea that Monk's wife Trudy may have faked her own death. This episode was especially sad because Monk learned this as he was finally starting to make progress with his OCD. In the end, Monk falls harder than he has in years and the audience starts to realize that we've grown attached to the character and we care what happens just as much as he does.
In the end, the fourth season of Monk proves to be the defining season, where long-lasting relationships are made and characters become iconic. It'll be hard to top this one, but I know this show will always keep trying.