Sharon Mitchells (Letitia Dean) world is about to get turned upside down as she learns Mel Owen (Tamzin Outhwaite) knows Keanu Taylor (Danny Walters) is the father of her unborn baby.
We saw Mel put two and two together at the end of Fridays instalment, after seeing the dad-to-be fussing over her bump.
But, far from running to Phil Mitchell (Steve McFadden) and letting slip, she decides to use it to her own advantage.
In fact, still grieving over son Hunter – who was shot dead by the police last week – she is ready to do whatever it takes to get what she wants, and begins blackmailing Sharon over her secret.
Which might make things awkward seeing as they run E20 together…
But what price will Sharon have to pay to keep her secret safe?
It is well known Mel will not be on our screens for much longer, with Tamzin having already filmed her exit scenes.
She shared a sweet message to the Walford crew on Twitter, teasing that she could soon be back in Albert Square.
So thats it! The end of an era… for me at least. Melanie Healy/Beale/Owen has left the building…, she wrote.
Its been a pleasure, a privilege and a 21 year association with a family I will cherish forever and never forget….
TIL next time my beautiful cast and crew… you all rock.
While well miss Mel, Sharon might be glad to see the back of her…
One to watch: Monday 23 September, at 8pm, on BBC One.