Chloe Hadjimatheou

And after a day of refusing to answer questions, they let her go home on the agreement that she'll return another day for follow-up questions.

But Sally Walker never shows up.

When they go round to her house, it's clear her family have no idea where she's gone.

The Isle of Skye in Scotland, a favourite haunt of Tim and Sally's.

It's where the couple got married.

The police in Wales call the local Isle of Skye police and they go and investigate.

Ros doesn't really remember what the police did next.

She only remembers that the woman who the family had trusted and thought of as a friend had betrayed them by stealing tens of thousands of pounds and then wasn't prepared to face up to it.

She'd done a runner.

She's gone about two weeks.

But Sally hadn't gone for good.

This quiet, unassuming woman had a plan.

She'd fled to London to visit a very wealthy relative of her husband's, a man she called Cooper.

Moth would later tell this man and his family that Sally had also secretly taken out credit cards in both their names and maxed them out.

But Cooper was on hand to help.

He lent Sally £100,000 and with that money she hired a lawyer.

Sally Walker's solicitor made Ros and Martin Hemmings an offer.

Sally would pay them back all the missing money on a no-admissions basis and, in return, Martin had to promise not to pursue criminal charges and not to talk about the matter publicly again.

Ros says in the end they decided against a long legal case which might mean they wouldn't see a penny.

no criminal charges were ever brought against Sally Walker in relation to the missing money.