S5, E1: 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.