One of Jess Franco's more famous concoctions and a classic example of some of his recurring themes - women in prison, women getting wet, bondage, chastisement and masochism, and the presence of a dominant female.
The plot? Well, in some South American country there is a clinic which treats women for mental illness: it specialises in some unique forms of illness - "nymphomania, lesbianism, and prostitution" are the three mentioned! Not only do the inmates fail to recover from their treatment, no patient has ever emerged alive from this clinic! Well, that's what you get when you privatise the NHS!
The clinic is run by the dominant and pneumatic Ilsa, who has a penchant for soapy baths, crisply ironed shirts, and the use of a whip. When one girl makes an escape bid, she is pursued by armed guards and manages to trigger an investigation into the clinic. For some reason Amnesty International gets a mention here! An undercover agent volunteers to infiltrate, trying to discover news of her own missing sister. Thereafter, the clinic is exposed for what it really does ... and a lot of flesh is exposed into the bargain.
There are a lot of naked bodies, but as pornography goes, it is quite tame. Classic Jess Franco ware - tacky, dreadful acting, worse dubbing, a fragile plot, limited characterisation, but numerous opportunities for shower scenes, women on women, chastisement and chains, etc., and the pneumatic Ilsa bouncing along, trying to keep order. But well shot, well lit, quite titillating in places ... and, if you're a vegetarian, watch out for the cannibalism!