Coronation Street boss Iain MacLeod is convinced fans will not predict what Stephen Reid (Todd Boyce) has in store for Carla Connor (Alison King) as part of a new sinister storyline.
The Weatherfield killer will target the Underworld boss in upcoming scenes and will set out to destroy her in a bid to steal the factory.
Carla will push Stephen too far by belittling in front of his former colleagues and Iain has revealed that he will be very surprised if viewers work out what he does to her.
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Iain said: “He sees his first step back on the ladder to the top of the international rag trade as getting the gig in Underworld, and then trying to topple the current queen of the pile Carla.
“There’s this really good psychological warfare which begins with those two and of course it’s all freighted with the knowledge on our part that we know he’s killed someone.
“So when Carla is in there belittling him and making him make tea, undercutting him in front of clients, she’s just unwittingly poking this hornet’s nest and obviously at some point all the hornets do come out, but not probably in the way you will expect.
“If anyone predicts what Stephen does to Carla I will eat my hat.
“Honestly his plan is so out there and dark I’d be incredibly surprised if anyone spots it coming over the hill.”
Fans will already be aware that Stephen killed Leo Thompkins (Joe Frost) last year in a bid to keep his financial difficulties a secret from his friends and family.
As he begins his reign of terror on those who get in his way, Iain said the whole Corrie cast “is worried”.
He explained: “Everyone should be worried. The whole cast is worried.
“Of course we know what Stephen did the last time he was backed into a corner, so to what lengths will he go to rid himself of this new threat?
“He becomes increasingly desperate across the next 12 months or so, there is lots and lots to come.”
Coronation Street airs Monday, Wednesday and Friday on ITV1 and ITVX at 8pm
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Source: Celebrities - dailystar.co.uk