Morgan Fairchild guest stars as Chandler's mother, romance novelist Nora Tyler Bing (her latest bestseller: "Euphoria at Midnight"). Though Chandler (Matthew Perry) is as open-minded as the next guy, he's none too comfortable over his mom's very friendly relationship with Ross (David Schwimmer). And out on the street, Monica (Courteney Cox) inadvertently sends a pedestrian into a coma, leading to a mini-competition between Monica and Phoebe (Lisa Kudrow). Watch for a surprise celebrity cameo. ~ Hal Erickson, Rovi