Het Wonder Daaronder is a musical science documentary that takes us on a journey into the vagina. The Isala Research Project, led by professor Sarah Lebeer, is researching a very under-researched topic: the vaginal microbiome. The team collects and examines more than 6,000 samples, soon becomes the largest study of the vaginal microbiome in the world and wins several awards. Het Wonder Daaronder is a collaboration between researcher Sarah Ahannach, who is part of the Isala project, from the University of Antwerp and filmmaker Nina Landau.