Mike Rock

Claire and Haley have a bit of quality girl time while they're stuck at home sick, and Phil is preoccupied by the taunts of a chirping smoke detector. Gloria and Manny's surprise visit at Jay's work leads to headaches for Jay, and Cameron gets swept up by all the lights and cameras when he goes behind Mitchell's back and takes Lily for a commercial.

Patrick Jane and the CBI team investigate the death of a mathematical genius by a gun-wielding clown. Series star Owain Yeoman’s wife Lucy Davis guest stars as the victim’s wife, Daphne.

Beverly plans a birthday sleepover for Adam, but things go awry when a friend brings his dad's home-brewed beer and gets everyone sick. Meanwhile, Murray promises Erica and Barry a new CD player on the condition that they write the greatest song ever.

When Monk's insurance company refuses to pay for more individual therapy sessions, Monk joins Dr. Bell's therapy group, where somebody appears to be murdering his fellow patients. Tim Bagley and Hector Elizondo guest star.