Dave welcomes actress Kirstie Alley, comedian Louis CK and musical guests Fountains of Wayne.

Louie starts his evening with a surreal trip on the NYC subway, where he witnesses a busker playing beautiful violin music while a filthy homeless man scrubs himself down with bottled water nearby, has a black-and-white vision of himself saving the riders from a soda-soaked seat, and then heads into the opening credits. Later, he meets his friend Pamela for lunch, and he ends up passionately telling her how he feels about her. And she doesn't respond at first, leaving him to misread a later invitation of hers, and the revelation ends with Louie standing outside her building and screaming in pain and anger.

Indications are that the East Jameson gang was involved in the murder of a police informant, so solving the case will be difficult. The pressure is on when Superintendent Elaine Peck sets up at the station. Elsewhere, Andy is paired with Detective Rosati who unintentionally makes Andy privy to a secret that involves Luke. Stressed out with her mother at the station, Gail is tasked with protecting an eight-year-old boy who's the only witness to the crime.

Harvey and Mike work to save a woman wrongly accused of insider trading. Mike helps Rachel study for the LSAT, only to find out she is on the brink of discovering his closely guarded secret.

John McCain enrages Tea Partiers by calling them "Hobbits," and Republican presidential candidate Buddy Roemer won't take special-interest donations.

Episode info coming soon ..