A man becomes involved with his brother's wife and mistress in The Sister-in-Law (1974), an appropriately sleazy slice of '70s softcore trash. Robert (John Savage) has just returned home from an unnamed "long trip"; when he gets there, he finds out that his brother Edward (Will MacMillan) has taken a mistress (Meridith Baer), but hasn't quite left his wife (Anne Saxon) either. So… Become a Mr Skin Member and get the full review
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