Unforgotten star Nicola Walker left fans of the hit ITV drama hovering over the remote ready to change channels as she admitted to a 'huge fear' of revealing spoilers during an appearance on This Morning.
The fourth series of the hit programme kicked off last week with This Morning host Phillip Schofield revealing it scored its "highest ever launch" figures as millions tuned into see Nicola's character DCI Cassie Stuart and DI Sunny Khan (Sanjeev Bhaskar) back in action as they aim to get to the bottom of another grim crime.
The fourth series opened with the discovery of a dismembered body in a scrap metal yard, which the team believe has been stored in a domestic freezer for 30 years.
Various clues lead to the victim being identified as Matthew Walsh, a young man in his mid-twenties who went missing in March 1990.
As Unforgotten fans wait for the twists to unravel in the remaining five parts Nicola chatted to Phillip and co-host Holly Willoughby via video on Monday, hours before episode 2 aired.
And as Holly mentioned the Twitter activity regarding Unforgotten and the hashtag #UFTheory, Nicola joked she was going to get involved using a pseudonym to "try and derail the case," with the hashtag #Sunnydidit.

Phillip responded: "The worst thing for you is actually keeping this a secret. You are always terrified you're going to give it away."
She replied: "This is nervous energy you're seeing here on Zoom - my mantra this morning when I woke up, I saw the segment on mantras earlier, is 'Nicola do not tell who the killer/killers is."
Holly urged: "Just stop!" as Nicola replied: "Because you'd spoil it for so many people; I've always felt that with Unforgotten.
"I don't tell my dad, my brother. I tell no-one.
"It really is a huge fear of mine that it'll just blurt out....I sort of want to tell you."
Stopping her in her tracks, Phillip told her: "We know how rubbish you are which is why we're not asking you any probing questions about plot lines!"
Holly then steered the topic of conversation away from Unforgotten to The Split, the BBC drama Nicola also stars in.