NICOLA Bulley's partner Paul Ansell has opened up about her disappearance in a sit-down interview.
Paul told Channel 5's Dan Walker that he will "never give up" on finding Nicola in the chat, airing at 9pm tonight.
Paul insisted that he is "100 per cent" sure that she did not fall into the river, as police believe.
The dad said: "People don't just vanish into thin air, it's absolutely impossible.
"So something has happened. Something has happened. Find out what it is. Find out what it is.
"There has to be a way to find out what happened, there has to be.
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"You cannot, you cannot walk your dog down a river and just vanish into thin air. Something happened that day, something."
He also said he wants efforts to find Nicola ramped up.
The dad-of-two said: "My plea now, is personally, I want every house, every garage, every outbuilding, the land, scrutinised.
"I want it all searched, I want it all scrutinised, every piece of it."
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That's because Nicola would "never give up on anybody", Paul said.
When asked how he's felt throughout the ordeal, Paul said: "Anger, loads of frustration, confusion, disbelief, surrealism, nothing feels real.
"It just doesn’t feel real… I feel like I’m in the Truman show. Like.. I honestly believe I’m going to wake up at any moment…how are we even in this? We are good people."
However, he praised the police for their hard work and emphasised that he was not criticising the investigation.
The in-depth documentary, including the full interview, titled "Vanished: Where is Nicola Bulley?" will air at 9pm.
Pictures posted on Twitter show the pair sat together on a pair of leather sofas, as well as walking springer spaniel Willow, who was with Nicola when she vanished, in the garden.
A preview of the interview also showed haunting footage of the mum playing in the snow with her children before she vanished.
Nicola has been missing since January 27, when she vanished while walking Willow in St Michael's on Wyre, Lancashire.
Police divers and outside experts have searched the river extensively over the past two weeks, without success.
What we know so far:
- Cops are probing a new lead concerning a “shabby red van”
- Dive expert Peter Faulding has contradicted the police’s theory that Nicola fell into the river
- Loose Women star Denise Welch sparked fury with her comments on the case.
- Jeremy Vine made a blunder by calling the case a “murder” on BBC radio
- Private security were called in to the local village as an influx of amateur sleuths prompted fears from residents
It comes after the search was widened up to 20 miles away from where the 45-year-old vanished.
Police took to dinghies to scour the coastline in Morecambe Bay, Fleetwood, but were unable to find any trace of her.
A new lead also came to light regarding a "shabby red van" that was in the area where Nicola was last spotted at the time.
Two witnesses have confirmed the sighting and police are probing the suspicious vehicle.
However, search expert Peter Faulding, whose team was involved in the hunt until recently, has thrown doubt on the cops' current theory.
He has said that he would "be very surprised" if Nicola had fallen into the river and suggested that she "may never be found".
Meanwhile, BBC presenter Jeremy Vine made an embarrassing blunder when he referred to the case as a "murder", despite no suggestion of foul play from police.
Mr Vine made the error on a live broadcast while interviewing Nicola's friend Emma White.
He was discussing the controversial influx of amateur detectives trying to crack the case.
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The flood of sleuths has prompted fears in the area, with private security carrying out patrols after over-zealous newcomers searched elderly residents' gardens.
And that wasn't the only broadcast controversy, as Loose Women star Denise Welch sparked fury with her comments on the case.