When her sister disappears, Abbie Phillips (Tania Busselier) goes undercover in a South American mental institution run by none other than the sadistic Ilsa (Dyanne Thorne), where the sexual excesses are only the initial shock. Abbie also uncovers a range of bizarre torture that's taped and sold as pornography. Proud purveyor of sleaze Jess Franco directs this sordid installment of the Ilsa franchise.