The Sister Of Ursula - 1978 - 6/10
AKA - La Sorella di Ursula

The sister, Dagmar, has her hands full with Ursula.
Ursula is still in agony over the death of their father.
Worse, she is high strung, has premonitions, usually of death.
And the off-season hotel where they are staying (in stunning Amalfi) has a serial killer.
While the hotel keeps trying to gloss over and cover-up the deaths (bad for business), Dagmar hooks up with a junkie.
Speaking of hooking up, wow! is there a lot of sex and full frontal nudity in this one.
In essence, this is a Slasher, with a lot of attractive scenery.