Emmerdale spoilers follow.
Emmerdale schemer Kim Tate starts to fight back against her enemies next week after realising that somebody is poisoning her.
Kim's health has been deteriorating in recent weeks, as a mystery culprit has been spiking her decanter of brandy with diazepam.
All becomes clear to Kim in the coming days as she realises the true source of her troubles and begins plotting her revenge, gathering all of the poisoner suspects together to make a shock announcement.
Here, Claire King – who plays Kim – teases next week's tense episodes.
How does Kim find out that she's being poisoned?
"When Lydia is at the house doing the cleaning, she gets herself all upset about what has been going on in her life. So Kim very kindly offers to give her a drink of brandy.
"They have a brandy together and within a couple of hours, Lydia is suddenly feeling nauseous and almost as though she has drunk a whole bottle, rather than a short glass.
"The next day, when Kim asks Lydia how she feels, Lydia says she feels as though she has been hit by a truck. It is then that Kim starts suspecting the brandy is laced with something. She gets her bloods checked immediately by the doctor again and she's told that her blood contains diazepam.
"This is a big relief for Kim, because obviously she's been thinking she has dementia and having tests for it. But to find out that actually her brandy has been laced and it's not dementia but poisoning, she now has to find out who is the culprit. Who is doing this to her?"
Does Kim realise this is what has been wrong with her all along?
"Kim thinks now that must have been what has been making her feel so ill for the last couple of months at least. So the penny has dropped, but now she has got the problem of finding out who it is.
"Kim, in her typical way, sets traps. She sets up a spy camera to try and find out who it is that is lacing her brandy. She arranges a lunch party, where she invites people to come round and she tries to flush them out to see if anyone will make a mistake."
How is Kim feeling?
"At this point, she wants to get to the bottom of who it is, then deal with them once she knows. Knowing Kim, she will definitely get her revenge!"
Can you tell us more about Kim's plan when she invites everyone around for lunch?
"She gathers all of the suspects. She makes a list and invites them all. She's put Jai and Al on this list because they've been giving her a lot of grief about work and she doesn't completely trust them as far as the business is concerned, so she has to include those two.
"There is Dawn. Kim has previously spiked her drink, so she thinks this could be revenge. She also dislikes Dawn intensely as she is seeing Jamie, so Kim wonders if Dawn might want Kim out of the way.
"Will is on there because he's Dawn's father. He's in and out of the house and he might get Kim back for her treatment of Dawn.
"She suspects Gabby, because she now doesn't trust her very much as she has been stealing from her and thinks that maybe Gabby has ulterior motives about getting her hands on Home Farm, and of course her son Jamie because he's living in the house.
"The brandy is in the house and all of them have access to the house, so they are all possible culprits."
Is Lydia under suspicion?
"Kim has ruled out Lydia at this point, because she drank it and just seemed totally innocent of it. Also Lydia has been a real support and help to Kim recently when she passed out."
Does anyone else know Kim is being poisoned, or does she keep her discovery quiet?
"No, just Kim. She is keeping her cards close to her chest on this one, because she doesn't trust anybody at the moment including Jamie, Gabby, Will. These are people that are very close to her, but she is keeping it to herself and not giving the game away until she has found out."
What does Kim tell her lunch guests?
"When they are all gathered, she actually throws a bit of curveball or red herring to them by saying she is going to retire. She says she has had enough of the business and she wants to hand it on to a successor.
"This is her throwing a line out – seeing who will be reeled in by this. Who is going to be the most sycophantic? Who wants it the most? Who is going to go to the ends of the earth to try and be the successor to Kim? Hopefully this is her way of trying to flush out the culprit."
Are the suspects shocked by this revelation?
"They are completely shocked. They never thought they would see Kim Tate actually retire, but she convinces them that this is it. She wants to kick back and enjoy herself from now on, now she has made her millions.
"Kim says she wants somebody to take over the day-to-day running of the business, although I'm sure she will keep her fingers in pies. She convinces them she wants to retire and give it all up."
What's next for Kim?
"It's now a waiting game to see who she can flush out and discover who it is that is doing it to her. The lunch party is just the start of it. I'm sure there will be many other tests to try and test each one of them. Who will fail?"
Emmerdale airs weeknights at 7pm on ITV, with an extra episode at 8pm on Thursdays.
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