Günter Wallraff: Schwarz auf Weiss 2009 one on netflix

A black-skinned migrant travels across Germany and puts the locals’ hospitality to the test. But what the people he meets don’t know – this black man is actually Günter Wallraff. For a year, the famous undercover journalist was perfectly masked and with a hidden camera on the road in the republic and experienced firsthand how Germans treat black fellow citizens.