Richard's neuroses could ruin his new relationship. Big Head and Erlich's launch party goes awry. Dinesh is smitten with a foreign coworker.

A beta version of Pied Piper gets an unexpected reception as Dinesh's lack of friends worries him. Monica isn't sure she can dole out criticism. A strapped Erlich mulls a big decision. The Nucleus team tackles a difficult challenge from Gavin.