The House of Eliott (1991)

S1E4 Episode Four

Evie is taken aback when she learns about her 24-year-old half-brother, Sebastian. His mother, Mrs. Pearce, who had an affair with Mr. Eliott, shows up at the sisters' home, insisting that her son deserves a portion of the inheritance. Meanwhile, the sisters are facing financial difficulties and are forced to put their house on the market.