While searching for their estranged mother, two beautiful sisters, Dagmar and Ursula, arrive at a luxurious seaside hotel. At the same time, a mysterious killer starts murdering promiscuous women in the area.
During a high-stakes investigation into corporate and banking elites tied to organized crime, a police chief and his team are murdered for refusing a bribe. Meanwhile, another officer finds his bank account credited with a large sum and receives anonymous instructions on how to handle the subsequent inquiry.
Desirée, a girl of Sweden, niece of a priest, came to Ancona. Uninhibited and a naturist, attracts the attention of boys and dislikes of local women.