Review: While not quite as monstrously preposterous as later works, this slow-moving, repetitive giallo offers some nice touches in the first half, but grows more and more lethargic and silly as it stumbles to its lame denouement.

To be sure, the actors are above average - considering this is an Argento movie - and some moments show the director's visual skills, but whole sequences should've been cut and, basically, it's just the same exploitative trash as ever, wallowing in fake science and abnormal sexual depravity.

3 out of 10 genetic disorders
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