A series of rapes shakes Wiesbaden to its core. Inspector Heller and her colleague Verhoeven are working tirelessly to bring the perpetrator to justice. The assailant meticulously stalks his victims and invades their homes, leaving the police to wonder if there's a connection to similar attacks on women that occurred six years ago. As they delve deeper into the investigation, the detectives face a race against time to unravel the mystery and prevent further crimes.