S7, E15: Scott Woolley (guest star Jeff Goldblum), Karen's nemesis, hires Grace (Debra Messing) to design his new restaurant under the condition that Grace fires Karen (Megan Mullally) from her design firm. Grace later tells Karen about the incident and they realize the man that hired Grace is really Scott Woolley. Grace and Karen decide to trap him in his lie. Meanwhile, Jack (Sean Hayes) takes Will (Eric McCormack) out for a boys' night to get his mind off of Vince, but ends up abandoning Will at the club. Will upset over being dumped at the club confronts Jack about his behavior. The next day, Will confronts Jack about his selfish behavior and, in an effort to make amends, Jack takes Will out to dinner and tries to focus all of his attention on his friend. That grows difficult when Broadway star Patti Lupone ("Evita") enters the restaurant.