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orman Glass is celebrating his first wedding anniversary. He married Ady Sutton a year ago and they are very much in love. So is Norman's friend Dennis who is married to the very attractive Barbara. Suddenly however, Norman believes that something is wrong with Ady. When he kisses her she tastes rancid; then she smells foul; another time he loses his sense of touch, but only in relation to his wife. His friend Dennis seemingly goes mad leaving Barbara convinced she is not human. Slowly, Norman similarly begins to believe Ady is not what she appears to be.

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