Emmerdale's Chas Dingle faces fresh heartbreak next week as she discovers that her fiancé Cameron Murray has been sleeping with his ex Debbie.
Chas learns the truth at the funeral of her half-sister Gennie, and is later stunned as Cameron (Dominic Power) declares that he never really loved her.
Here, Lucy Pargeter - who plays Chas - reveals how her character will react to the shocking news.
How is Chas feeling in the wake of Gennie's death? Does she have any suspicions over Cameron yet?
"Chas is absolutely devastated by what's happened. She also feels quite guilty because of the argument she had with Gennie before her death.
"Chas is now so consumed with her grief for Gennie that she still doesn't think anything untoward is going on with Cameron. He's acting weird, but Chas thinks it's just because he still has depression. There's absolutely nothing for Chas to be suspicious about, given the information that she's got at the moment."
Next week is when Chas does start to become suspicious. What starts that off?
"Well, first of all Brenda goes missing on the morning of Gennie's funeral and Chas decides to go looking for her. Cameron is determined to stay there in the pub, which Chas thinks is a bit weird. Once they find Brenda and they're walking back up to The Woolpack, Chas thinks that she sees Cameron at Debbie's house, which is bizarre, because why would he be there?
"When Chas later asks Cameron about this, he blatantly brushes over it and says that he was in the pub cellar. Gennie's words of warning about Cameron start to ring in Chas's ears. It's very quick, but all of a sudden, Chas knows the truth!"
Chas confronts Cameron in the middle of Gennie's funeral, doesn't she?
"Yes, she does. She quietly asks Cameron whether he really loves her and he says yes. However, then Chas says, 'Do you say that to Debbie? And would that be before or after you've slept with her?' He then admits that it's been going on for a few weeks, so Chas is absolutely fuming and devastated."
Given that she's in the middle of attending a funeral, how does Chas react?
"Chas does have to give a eulogy for Gennie, so she wants to do that and then deal with Cameron later. She stands up and starts to talk about Gennie, but then the speech moves on, and it looks like she's about to expose both Cameron and Debbie.
"However, Chas does then remember why she is there. She sees confusion on Nikhil and Brenda's faces, so she pulls herself together and finishes off the eulogy. Afterwards, she runs out of the church because she can't keep her mouth shut."
Is this the end for Chas and Cameron?
"Yes, I think it is. It's a strange one, as it's payback for Chas. She did it to Debbie, and now Debbie has done it to her. Chas thought she was going to be happily married with Cameron, so it is the ultimate betrayal. At the same time, she's not surprised that he did it to her, as he did it to Debbie and he also did it to his wife before that."
Does Chas want to get revenge against Cameron?
"Chas is absolutely furious with him and she does lash out at him. She shouts and screams at both Cameron and Debbie. But afterwards, she tells Debbie that she doesn't want to fight with her anymore or hurt her, as it's tit for tat. Chas doesn't want Debbie to be part of her life, but she's got more to deal with at the moment."
How does Cain find out?
"Cain gathers at the funeral that something must be going on, and then he asks Chas at the pub what Cameron has done. Chas replies, 'He's done Debbie!', so that's how Cain finds out!"
Cain later takes Cameron to a quarry and prepares to kill him… Would Chas like to see Cameron dead?
"I think Chas couldn't care less what happens to Cameron, but she is worried about Cain getting into trouble for killing him. Chas has told Cain that it'd be better if Cameron wasn't around anymore, so she's kind of given him the go-ahead to do it. She's gobsmacked that Cain has taken her to her word!
"Chas is worried for both Cain and Cameron. If Cameron accidentally tripped over a cliff, Chas would deal with it, but she would be worried if Cain was involved."
Where does Chas go from here?
"Chas has still got the pub, so she needs to focus on that. She's also back with her family now. She makes up with Charity and she's also got Cain back - it's just that she's lost Cameron and Debbie. She's strong, though. Over the past couple of years, she's had enough thrown at her to brush herself off and get on with it."
Do you think Chas regrets not staying with someone safe like Paddy or Dan?
"In her heart of hearts, Chas knows that she should be with someone like Paddy or Dan, but she also knows that will never light her fire, keep her going and keep her excited. She likes bad boys!"
How would Chas feel if she knew about Cameron's murders?
"It would just mean that the last year of Chas's life has been a complete lie. I don't know whether she'd be angry or completely traumatised. You just never know with Chas. She's usually either devastated or angry.
"It'd be massive thing to come to terms with. Chas never will get over the Carl thing, so maybe it'd be a weight off her mind to know that she wasn't responsible for killing him."
What does the future hold for Chas and Debbie?
"It's quits for them now, really. It's not going to be easy for Chas to see Debbie with Cameron, but Cameron just tells Chas that he never loved her and he just felt sorry for her. To hear that it was never real to begin with almost makes it easier for Chas to move on.
"I think people will be quite happy to see the story reach an eventual conclusion. We thought it'd be put to bed when Debbie held Chas at gunpoint, but obviously it's carried on. The viewers will be happy to see it put to bed."
What was Gennie's funeral like to film?
"I think it must have been the longest funeral in Emmerdale history! It was filmed during really hot weather, and we all had to wear black suits and black tights. But we had the most amazing director, Peter Rose, who never takes longer than he needs. Everyone is supportive on set and a funeral is always a good time for teamwork."
Are you missing Sian Reese-Williams, who plays Gennie?
"I'm missing her madness! I'd arrive to work every morning and wonder what the day would have in store with Sian! I'm not missing the mess in our dressing room as she was extremely messy, but I am missing her presence in the building.
"Sian was a massive personality with loads of energy and when someone like that goes, it leaves a massive hole. But I'm wishing her every bit of luck for the future."
> Read more 'Emmerdale' spoilers and news
Emmerdale airs weeknights at 7pm on ITV, with an extra episode at 8pm on Thursdays.
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