The Nanny (1993) : 5x19

Maxwell's father unexpectedly passes away, and in his will he leaves everything to Concepcion, a secret daughter he had with a flamenco dancer. C.C. is back from the sanatorium and doesn't miss the opportunity of terrifying Fran and trying to split Fran and Maxwell up. Afraid that the Sheffields are going bankrupt, Fran visits Concepcion trying to persuade her to share the money with her siblings, but can't. Knowing what if feels like being poor, Fran tells Maxwell that she'll understand if he decides to marry a rich woman in order to keep his lifestyle. C.C. offers herself to marry Maxwell, but his love for Fran is beyond money. Then Sheffield's lawyer arrives with the news: Concepcion decided to share her money, all because Fran made her feel like family. Niles plays tricks on Ms. Babcock, making her doubt her own sanity.