The writers are adamant they only planned a four part drama – with star of the show Katherine Kelly also dismissing the chance for her character to return.
A spokeswoman for ITV said: “Cheat was conceived as a self-contained four part drama. There’s been no talk of another season as it was only ever planned as a standalone series.”
Actress Katherine also quashed the idea of a follow-up to the show – hinting there will be no unanswered questions from tonight’s finale.
Speaking about a second series she said: “It’s never even been mentioned.
“As you’ll see on Thursday night, we don’t hold anything back. So it would be the first I’ve ever heard of it.”
In Wednesday’s episode Rose seduced lecturer Adam despite knowing he’s married to her half-sister Leah.
Audiences finally discovered that Rose, played by Molly Windsor, is related to Leah after her father had an affair and kept her existence secret from the rest of his family.
Rose, whose mum committed suicide, sought revenge on Leah after being envious of her carefree upbringing.
It appeared as though Rose was forced to stab Adam to death in an act of self-defence after he wrapped his hands around her throat.
But investigators are still unconvinced they have arrested the right woman behind Adam's killing.
Leah and Rose have both been seen talking inside prison – with it remaining unclear who went down for the lecturer's death.
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