A robbery-homicide prompts Beckett to invite Demming to assist on a case, giving Castle a ringside seat to their budding romance. When it becomes clear that the two men have very different ideas about how to proceed, the investigation becomes an unspoken competition for Beckett's attention, one in which each man races to solve the case, as Beckett referees between her two admirers.

Actress Evangeline Lilly; actor Sam Rockwell; eliminated ``American Idol'' contestant Aaron Kelly; a performance by the Broadway cast of ``Million Dollar Quartet.''

Leonard and Sheldon compete for the attention of a famous female physicist.

Tonight Stephen welcomes the former Governor of New Mexico Gary Johnson, Also, Stephen talks with George Washington University's Scheherazade Rehman about the Greek bailout.

Episode info coming soon ..