Amy Sedaris returns as Gail Fleming, the ditzy actress sister of Monk's nurse-assistant Sharona Fleming (Bitty Schram). In the middle of a stage performance, Gail's leading man Hal Duncan (Marc Vann) is stabbed to death by what was supposed to be a retractable prop knife. Sharona must now not only cope with the possibility that her sister is a murderer, but also with the unexpected visit of her overbearing mother Cheryl (Betty Buckley). In his efforts to clear Gail's name, Monk signs up for a troublesome "speed dating" service--and also confronts his mortal fear of crowds when pressed into service as an actor! ~ Hal Erickson, Rovi