Blanche comes face to face with her former lover when a scandalous novel is published and, when the passion between the pair reignites, begins to consider a life away from Eaton Place. Downstairs, Beryl's decision to take a stand causes serious ructions to the running of the house until a familiar face offers wise words. Meanwhile, when Lady Persie reveals a shocking secret to Sir Hallam, the pair get ever closer as Persie is forced to make a life changing decision about her future.

• Heidi Thomas

• Jean Marsh
• Ed Stoppard
• Ellie Kendrick