Emmerdale 's Kim Tate could kill her enemy Caleb Miligan on the ITV soap, with a big secret about to drop.
Viewers know that Caleb is working to destroy Kim while pretending to go into business with her, while Kim is yet to find out.
Caleb is the secret son of Kim's ex Frank Tate, who she left to die over 20 years ago on the ITV soap.
Frank suffered a fatal heart attack on the show in 1997, with Kim throwing his pills away and standing over him as he laid dying on the floor of Home Farm.
Somehow Caleb knows this and he blames her for his father's death, while he also believes Kim's fortune belongs to him as she stole money from Frank.
Now, ahead of the truth being exposed at some point, Kim actress Claire King has teased that the "old Kim" could return to destroy Caleb.
She discussed "alarm bells" that could expose Caleb's identity to her, and revealed that Kim would want revenge on him - even hinting she could kill him.
Speaking to The Mirror and other press, Claire said: "W ill has had a few alarm bells ringing because of the fact Caleb has been throwing his family under the bus just to get Kim a farm.
"Caleb has put some malware on Kim's computer so he hacks into it so he can get her passwords and can take money out of her accounts.
"She's been listening to a Neil Diamond song and so Kim hears Caleb humming along to that song, and so that triggers alarm bells for Kim. So she thinks I'll have to test him out, so that's where we are up to."
On whether Kim knows the truth or will find out soon, she coyly said: "We don't know yet do we."
As she was quizzed about the "old Kim" killing people that crossed her, Claire told us: "Hold that thought.
"She's not gonna be a happy bunny is she. Oh I think there'll be an element of the old Kim back, I think 'best served cold' will come into it."
Emmerdale airs weeknights at 7:30pm on ITV1 and ITVX, with an hour-long episode on Thursdays.
