THE final season of The Split continues for its final season TONIGHT on BBC One.
We take a look to see if this explosive drama is based on a book - find out here.
Is The Split based on a book?
The popular BBC drama is not based on a book.
Welsh screenwriter Abi Morgan is the creator and writer behind the series.
Morgan is best known for her work including, River, The Hour, Suffragette, Shame, Sex Traffic and The Iron Lady.
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Speaking about the final season, Morgan said: “It’s great to be back writing for the Defoe Family, and to dive once more into to the complications of their lives and those of their clients.
"In the final series of this bittersweet trilogy, Hannah faces the heartbreak of her own divorce, and the fight to save her family and her marriage.
"Siblings clash, past mistakes are exposed and hearts are broken as Noble Hale and Defoe notches up more billable hours in the divorce capital of the world.”
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What happens in The Split season 3?
The Split is set in the fast-paced, intense world of London's high-end divorce circuit.
It's a witty exploration of modern marriage and the legacy of divorce.
It follows the lives of three Defoe sisters, Hannah (Nicola Walker), Nina (Annabel Scholey) and Rose (Fiona Button) and their formidable mother Ruth (Deborah Findlay).
Viewers last saw how Hannah's solid marriage to Nathan, played by Stephen Mangan, fell apart due to her affair with her previous partner Christie (Barry Atsma).
The new series will see Christie return, who is sure to make matters worse.
Will Hannah and Nathan be able to put the mistakes made in the past or will this be the end of the road?
The BBC teases a “shocking revelation that dramatically changes the stakes", adding: “Battle lines are redrawn, their dream of achieving the ‘good divorce’ is left in tatters.”
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When is Split back on BBC?
The last and final season of The Split will continue TONIGHT on April 18, 2022 at 9pm on BBC One.
Filming for the new series began in June 2021 and finished in September the same year.
The second season averaged over six million viewers and over 19 million streams.
Which made it the third most watched drama series on BBC iPlayer in 2020.