Coronation Street star Jane Danson has appeared to hint at a fan theory being correct as horror scenes unfold.
Fans are eagerly awaiting the next installment of the ITV soap's "Super Soap Week" episodes after it kicked off on Monday.
Halloween is bringing a series of shocking moments to the cobbles with several lives set to be in danger.
And for Jane's character, it is the return of evil Harvey Gaskell that is causing problems.
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The drug lord has revenge in mind after he was informed his appeal had been jeopardised by Leanne Battersby's sister, Toyah.
On Monday night, viewers watched as Harvey plotted his escape, emerging from a crashed prison van which was taking him to hospital.
As the guard pulled a knife on the driver, he lost control and crashed into the Alahan's car which had broken down after hitting a fallen tree.
As Dev, Asha and Aadi remained trapped in the car, Kevin Webster arrived after presumably being called about the break down.
But Harvey whacked him over the head in order to steal his pick up truck and drive himself back to the cobbles.
And he was soon face-to-face with Leanne who was alone in the Bistro, dressed as Morticia Addams.
Appearing on Lorraine Kelly's ITV show on Wednesday, Jane hinted the reason for the costume will become clear.
As Lorraine said: "We should explain that you're dressed up for Halloween, hence the long black wig.
"Is it Morticia? It looked very Morticia like..."
The Corrie star replied: "Yeah, there is a reason for that which I'm obviously not going to spoil but I realised very early on a black wig really didn't suit me very well.
Jane laughed: "I think a lot of people have been struggling to recognise who it is but all will be revealed tonight.
"I really want to tell you more but my lips are sealed."
The hint from Jane comes after fans predicted there would be a shock murder twist.
They think that Harvey could kill someone else - thinking it was Leanne.
Leanne ended up dressing up as Morticia in a bid to cheer Nick and Natasha's son Sam up.
It came after his mum Natasha phoned to say she was stuck in traffic after being in London showing Audrey and Gail Platt her salons.
So could Natasha return in time for the Halloween events and die in a case of mistaken identity?
Corrie fans were also left fearing for Leanne after Jane teased her exit.
The actress, who has played Leanne since 1997, took to Twitter to share one of the gripping scenes from this week, showing drugs lord Harvey making his escape from prison after a horror crash.
"Well its been an incredible 24 years ..." she tweeted, triggering a massive reaction from fans.
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