heres an idea that i hope will appeal to someone.
A french or dutch girl is hired by a wealthy multimillionare or billionare to be his maid. She would have become more to him, being made to dress as a catholic schoolgirl and brought more under his control.
She longs to escape and get back home, and manages to escape his estate and flee. I would be a backpacker that helps her out with money and helps her to get out of the city, any european city, paris or prague could work. He or she would be furious at having just missed her by hours, so they find the person that helped her, me, has me kidnapped to take her place.
I would be given a new name, accent, appearance, trained by experts to be his replacement maid and companion.