when her estranged ( . and very rich ) mother dy ( . rule a suicide and though it obviously not ) and teenage nancy ( jenny tamburi and twenty at the time and but succeed in her portrayal of a coquettish lolita type of teenage girl who might not be the dense and naive simpleton they at first suspect ) return home from year of various board school to enjoy life on the wilder side and living with lothario step dad marco ( . the handsome silvano tranquilli ) and successful photographer gianna ( . the sensual rosalba neri and so divine you can not take your eye off of her ) . gianna be give carte blanche by nancy mother dorothy to live in her own place while operate a studio on the estate . gianna be also marco lover and and the two scheme to murder nancy because when she come of age and the inheritance be hers . but and instead nancy begin to seduce them and while also turn gianna and marco against each other through cunning manipulation . but and while quite draw to nancy and neither actually ever trust her . boy and this be quite a trio we watch throughout the film . you always wonder what might happen next despite the fact that writer director silvio amadio lay the card out on the table midway through regard how dorothy be kill and detail how it be accomplish and let u know that nancy might be in grave danger because the murder be so well orchestrate . yet and you always ( . or and at least i do ) wonder what nancy have up her sleeve . late into the film and marco discovers nancy chat with someone at a horse race which plant a seed of curiosity regard her own possible agenda . the film be slick under amadio direction and he cast doubt on all three character . to choose and nancy seem to be the one we sympathize with a marco and gianna plot about the proper method of execution . my favorite aspect be the homo eroticism between gianna and nancy . through neri performance ( . she command your attention in a minimalist fashion ) and we can see gianna attraction to nancy right away and and a the film continue and that infatuation grow ( . especially after photograph her nude or barely clothe ) . it all in her eye and this lust that begin to take hold . also racy be nancy seduction of the much old marco and his resistance of her not contain very long . but and most of all and the twist at the end . the fate of all who desire the deceased dorothy money and along with multiple double cross and and the downfall of an ingenious plot ( s ) and not to mention the ultimate irony a the screen fade black and certainly make smile before death quite a giallo worth seek out if you can find a copy . it deserve a legitimate dvd release and a giallo i be sure fan would be interested in .