Kathmandu, Aug. 26 -- The Nepali restaurant is located in the richest country of the European Union, and its Facebook page is full of recommendations from guests lavishing effusive praise on its cuisine and service.

The page also contains a post from its owner saying that the restaurant's chefs and staff prepare all meals with great care so that guests leave with satisfaction and good memories.

What the Facebook page does not say is that the chef and staff had been made to work more than 18 hours a day as virtual slaves with their bank accounts, and in some cases passports, in the hands of an abusive owner.

Luxembourg is Europe's smallest country, and has the world's highest GDP per capita. It is one of the founding members of the Euro...