This movie is both unlikely and unlikeable. It is unlikely that good actors would sign on to such a ridiculous and implausible screenplay. Perhaps neither Kline nor Spacey read the script before agreeing to do this film. That seems the most plausible explanation.
At some point one would imagine that someone would have asked the director just why the audience should give a flying flip about the fate of the alleged protagonist. He is a man being framed for the murder of his neighbor, when he was only guilty of raping her. (I should also note that he had also arranged to have his own wife raped by the husband of his victim, but that man, the alleged antagonist, did not follow through. Instead he killed the woman Kline's character had assaulted and set out to frame him for it.) The women in this movie are as vapid as the men are vile. The framed character's wife ultimately forgives him when he is cleared of the murder without any regard for the fact that he had snuck over to their neighbor's house in the middle of the night to have sex with another woman without her consent. She also doesn't seem to mind that he had volunteered her for the same treatment.
At some point one would imagine that someone would have asked the director just why the audience should give a flying flip about the fate of the alleged protagonist. He is a man being framed for the murder of his neighbor, when he was only guilty of raping her. (I should also note that he had also arranged to have his own wife raped by the husband of his victim, but that man, the alleged antagonist, did not follow through. Instead he killed the woman Kline's character had assaulted and set out to frame him for it.) The women in this movie are as vapid as the men are vile. The framed character's wife ultimately forgives him when he is cleared of the murder without any regard for the fact that he had snuck over to their neighbor's house in the middle of the night to have sex with another woman without her consent. She also doesn't seem to mind that he had volunteered her for the same treatment.