4,150,324 views
In the past it was the grandparent scam, now it is stone cleaning. But the method behind it is always the same: convincing unsuspecting pensioners that they are spending a lot of money for nothing. Cases of fraudulent roof and stone cleaners are increasing all over Germany. At the forefront: a well-known family clan. SPIEGEL TV spoke to victims, uncovered structures and ultimately set a trap for the suspected perpetrators. A film by Adrian Altmayer and Adrian-Basil Mueller.