Emmerdale airs a revenge twist next week, as Rhona Goskirk vows to find out the truth about partner Graham Foster's murder.

She's determined to help ex Marlon Dingle, the father of her son Leo, who has been wrongly imprisoned over the crime.

He's struggling to prove his innocence, despite a number of villagers backing him - including Rhona, who is grieving for her partner.

She has no idea her ex-husband Pierce Harris has left prison, and is the true killer.

Graham learned of his release, and tried to threaten him to leave Rhona alone - after Pierce was charged in 2017 for raping her on their wedding day.

But this backfired, when a deadly showdown led to Graham's murder.

Emmerdale's Rhona vows to expose Kim and Al for Graham's death

Rhona is yet to find out he has been released, so she immediately suspects Graham was killed by his ex Kim Tate and her right hand man Al Chapman.

Villain Kim vowed to make the new couple's lives hell after Graham chose Rhona over her.

After finding out Graham was stealing money from her, she paid Al to murder him.

Emmerdale: Kim Tate and Al Chapman are hiding something

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Al found Graham's lifeless body and claimed to Kim he was the killer, with her yet to learn otherwise.

But they should watch out, as Rhona is convinced they were involved and vows to expose them.

She visits Marlon in prison, with him struggling with life behind bars and not being with young daughter April.

Marlon Dingle has been charged with Graham Foster's murder

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It's not long before she drops a bombshell on him - believing he's being made to take the blame by real killers Al and Kim.

She confesses all on her suspicions to him, and what she thinks really happened to Graham.

Marlon ends up wondering if Rhona could be correct, and if he's being framed.

Of course neither of them realise Pierce is back, let alone that he is the murderer and they're suspecting the wrong people.

Emmerdale airs weeknights at 7pm on ITV, with an extra episode at 8pm on Thursdays.