After her adoptive mother dies, Hortense, a successful black optometrist, seeks out her birth mother. She's shocked when her research leads her to a working class white woman, Cynthia. At first Cynthia denies the claim, but she eventually admits to … Brenda Blethyn, Marianne Jean-Baptiste, Timothy Spall, Phyllis Logan, Claire Rushbrook, Lee Ross, Lesley Manville Added on HBO 2023-06-27, leaving 2024-10-01. Youtube Trailer