Carrie Reichenbach

A CSI team investigates a mysterious death at Charlie's house. George Eads ("CSI: Crime Scene Investigation") makes a cameo appearance.

Charlie goes with Jake on a double date and sets Alan up with a prostitute. Recurring guest star MELANIE LYNSKEY appears as Rose.

When Jeff, (Patrick Warburton) Russell, (David Spade) and Adam (Oliver Hudson) make a bet to see who would be able to score the soonest, the three put their thinking caps on and rise up to the challenge. In the meantime, Russell's new assistant Timmy (Guest Star Adhir Kalyan) is also put into place as a watch guard for Russell. But when a series of unfortunate events begin to unwind, Jeff, Russell, and Adam are left out to hang with minutes to spare leaving only one winner that takes everyone by surprise.

After Michelle Cullman lures Jack Leverett to her apartment for an illicit tryst, Jack becomes furious when he discovers a hidden video camera. Jack and Michelle struggle over the camera, the fight escalates, and Michelle winds up dead. Jack wipes away his fingerprints, grabs the camera, and flees the scene. The next day, Monk and Natalie arrive at Michelle Cullman's apartment to investigate. In addition to Capt. Stottlemeyer and Lt. Disher, there's a new face on the scene: a big-time Hollywood actor named David Ruskin. Ruskin is set to play Monk in an upcoming movie, and he wants to follow Monk around as research for his new role.