 Over a lunch of crab in the shell, Ian listens to Barrett complain that Kaylie, Barrett s girlfriend, is being unfaithful. The proof: a partially-eaten hamburger (she s a vegetarian) and a want ad she s running for a male roommate. Ian defends her. Cut to Kaylie in her apartment, interviewing Derek, a ringer Barrett has sent to answer the ad, try to seduce Kaylie, and see if she s cheating on him. It s not sex, however, that Kaylie has in mind. A few minutes later, Barrett barges in hoping to catch her red handed. Will Barrett figure out what s really going on? When Ian arrives moments later, do Barrett s chances look better or worse? And what s in that stroganoff?