Hayley Slater is going to go missing in EastEnders just as she goes into labour.
The other Slaters will be out enjoying Halloween when it becomes clear how Jean has imbibed a touch too much libation, and so a costumed-up Kat decides to take her home.
But when the pair arrive back at the house they discover clear signs that Hayley has gone into labour.
However when they search the house it becomes clear that not only has she started to give birth to her baby, but she’s disappeared completely.
Despite their differences Kat heads out determined to find Hayley and help her to deliver the baby safely.
It comes after Kat turned on Hayley and called social services on her.
Hayley is left rattled next week when social services arrive at the Slater house asking questions about what happened the week before.
She’s livid and demands to know who called them, before refusing to accept their help.
The social worker tries to reassure a panicked Hayley that she only wants to help and eventually Hayley begins to open up to her.
She assumes that Jean called them and snaps at her, before going to attack her but Kat and Stacey arrive and break up the commotion.
As everyone calms down Hayley realises that it was Kat who made the call to social services.
The Slaters confront her but Kat stands by her decision, saying she did it for the right reasons.
Later Hayley decides to have it out with Kat and the pair end up sharing some harsh words before having an explosive row.
A furious Hayley decides she can’t be at the Slaters anymore and goes to stay with the Ahmeds.
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Jean makes the point that Kat should apologise to Hayley so she heads over to speak to her.
And she seems to do the trick when she convinced Hayley to come home but it won’t be long until the tensions between the pair bubble over again.
It will see Hayley go into labour and disappear, but will Kat be able to find her in time to save the baby?