British police say a nurse found in the boot of her car suffering from hypothermia and dehydration could have been there for up to 10 days.
Magdeline Makola, 38, was tied up and wearing nightclothes when she was discovered in her vehicle in the town of Airdrie, east of Glasgow, on Friday.
She was said to be suffering from minor injuries and "extremely traumatised" by her ordeal, making it difficult to interview her.
Ms Makola had not been seen since she left work at Edinburgh Royal Infirmary on 15 December. She was reported missing after failing to turn up for work on 18 December.
Her bank card had been used in Airdrie and a police officer heard her cries for help. Officers smashed the car windows to get to the boot.
Chief Inspector Tommy Tague of Lothian & Borders Police said her car had been used during the time that she was missing.
Police said it was fortunate that temperatures last week were reasonably mild for winter time.
They were relieved to have found her on Friday, as temperatures in Airdrie dropped overnight to around minus four degrees Celsius.