16 year old boarding school student nancy ( jenny tamburi ) arrive in town after her mother commits suicide . she be take in by her stepfather marco ( silvano tranquilli ) and who have already move in his mistress gianna ( rosalba neri ) . thing get a bit strange when nancy begin to suspect her mother do not commit suicide and put the move on both of her host . this be a nifty little thriller from silvio ( amuck . ) amadio with enough twist and turn to keep you interested . the main mystery isn not too hard to guess and but there be a nice extra twist at the end and and of course and another one for good measure . tamburi and the gorgeous neri spend a lot of their screen time nude and that certainly help too . quite possibly the best thing about the film be a theme that be so catchy with amadio use it at every opportunity . you will definitely be hum it for day after watch this one .