The film was based on two years of research captured using hidden cameras and explores Berlin's world of 'flat-rate' brothels where customers pay €99 and receive as much sex as they want.
Documentary-makers in Germany have claimed that legalising prostitution has turned the country's capital Berlin into World biggest brothel.
Sex trade laws were radically liberalised by the German government in 2002 but a documentary called Sex - Made In Germany estimates that over one million men pay for sex every day.
FKK Saunaclubs are very popular in Germany (and also in Austria and Switzerland).
The guests pay entry fee (50-150€) and got several services for their money.
If you're searching for adult locations, Germany is your biggest dream!
Especially FKK Clubs are very famous and popular in Germany.
Watching live sex shows is usually free, but if you buy some credits, you will have much better chances to see adult action as desired!
It's possible also to hire a webcam model to a private chat room where you can ask the person to fulfill your fantasies.
But according to figures from the Federal Criminal Police Office (BKA) the number of reported cases of sexual trafficking in 2011 in Germany - 636 - were down by a third on a decade earlier.
Red light districts have also become much more prominent in Germany's major cities - there is approximately 3500 established brothels in Germany and the trade is now big business.
But more than a decade on the changes in the law have brought criticism from those who claim that they have simply made it easier for traffickers to force foreign girls into prostitution, according to The Guardian.