The Split series three: Two Endings Filmed - how will it end for Hannah?

Set in the fast-paced, complex world of London's high-end divorce circuit, The Split is an authentic, multi-layered and witty examination of modern marriage and the legacy of divorce. Following the messy lives of the three Defoe sisters, Hannah (Nicola Walker), Nina (Annabel Scholey) and Rose (Fiona Button) and their formidable mother Ruth (Deborah Findlay), Abi Morgan is set to conclude the trilogy with the most dramatic and heartbreaking series to date, as we watch a divorce lawyer confronted by her very own divorce.

Adding fuel to the fire, the catalyst to the breakdown of Hannah and Nathan's marriage, Christie (Barry Atsma), will also return to the final series, which sees Hannah and Nathan's formerly rock-solid marriage unravel as they try to come to an amicable separation agreement.

As Hannah and Nathan begin to divide up their 20 years together, Hannah faces what she is about to lose and a shocking revelation dramatically changes the stakes. As the battlelines are redrawn, we wonder if their dream of achieving the 'good divorce' is even possible. Will they find a path through the wreckage, or is The Split simply too deep to repair?

The third series will air on BBC One in April.