SORELLA DI URSULA (LA)

While searching for their estranged mother, two beautiful sisters, Dagmar and Ursula, arrive at a luxurious seaside hotel on the Liguria coast. At the same time, a mysterious killer starts murdering promiscuous women in the area. The culprit turns out to be one of the sisters, an emotionally disturbed individual who kills young women who have just made love. Only the timely action of a police officer keeps her from doing away with her own sister.