For Günter Martin, everything changes when he whimsically dials a phone number and makes an appointment at an establishment. Suddenly, his life takes a turn he never could have imagined. Contrary to his expectations, he doesn't just visit a brothel; he meets an extraordinary woman there. Caroline gives him a glimpse into her erotic life and simultaneously transforms his perception of the sex industry. She even manages to change his view of the world. From then on, Günter walks through life with this woman, experiencing not only sexual revelations but also many curious adventures. With Caroline, there's never a dull moment...