Lily pulls aside Claire (Sarah Wright), a blonde woman at the bar, warning her of Barney's villainy, and she sits down with the rest of the gang as they explain the events that lead up to that night.
The book describes a set of con artist scenarios designed by Barney to manipulate girls into bed.
Barney's next move is a play called "he's not coming", where he seduces vulnerable girls at the top of the Empire State Building.
As they conclude the story there with Claire, they ask Barney what "The Scuba Diver" is, and he breaks down, saying his breakup with Robin was hurting him more than he thought, and this was how he coped.
Non-original music used in this episode includes Mozart's Rondo Alla Turca and a piano version of Nino Rota's "A Time for Us" from Franco Zeffirelli's 1968 film Romeo and Juliet.
Club graded the episode an A− in her review; she cheered the return of the "unredeemed essence" of Barney in the wake of his breakup with Robin.