Spurned spinster Christiana plots to regain her married lover in 19th-century Brighton.
John Fletcher's Edwardian murder story is based on real events.
10/10 Determined to avenge the crime against his friend, Robert confronts Lucy with the truth.
9/10 Phoebe Marks demands money. In desperation, Lady Audley faces up to her tormentors.
8/10 Cornered by her cousin Robert's accusations, Lady Audley fights back.
7/10 Robert determines to find a link between George Talboys's dead wife and his aunt.
6/6 The Roman sleuth has a fateful encounter with a missing legate and a giant Celtic bull.
BBC Radio 4 Extra
6/10 Robert Audley gets closer to the truth in his quest to uncover Lady Audley's secret.
5/6 The Roman detective is worried when the prisoners finally meet legendary priestess Veleda.
5/10 Speaking to Lady Audley's ex-maid provokes a surprise.