When a group of women in a Red Light district of Amsterdam perform a synchronised dance routine, the onlookers and bystanders – all men – find it a great source of entertainment. They cheer the women, who gyrate to the music. But as soon as the dance ends, all the men are shocked, some left gaping wide in amazement. So what left them in this state? Find it out yourself in this video and learn a horrible truth of our world.