Navigating the cobbled streets of Hannover's Ludwigstraße, our guide, a local with a penchant for the forbidden, leads us into the city's most infamous red-light district. Here, the air hums with a different energy, the buildings adorned with the telltale neon lights. We catch fleeting glimpses of the women within, their bodies painted in lurid hues, inviting. The tour is a dance with the devil, a peek into a world hidden in plain sight, where the line between permissible and prohibited blurs into a tantalizing haze.