O casamento de Frances enfrenta uma crise com o retorno do antigo amante da Jo. Frances's marriage faces crisis as Jo's past lover returns.

Frances Forsyte enfrenta uma crise depois de saber que a ex-amante do marido, Jo, Louisa, voltou para Londres com dois filhos de seu caso. Frances Forsyte faces a crisis after learning her husband Jo’s past lover, Louisa, has returned to London with two children from their affair. Enquanto Frances e Louisa concordam em manter o segredo para proteger Jo e sua família, a reconexão emocional de Jo com Louisa ameaça desvendar a vida cuidadosamente construída de Frances. While Frances and Louisa agree to keep the secret to protect Jo and their family, Jo’s emotional reconnection with Louisa threatens to unravel Frances's carefully constructed life.