Late 80s/early 90s film. The plot centered around a woman and a man who I seem to recall had committed a murder, and another man, whom I seem to recall had been framed or wrongfully suspected/accused. In the storyline, the wrongfully suspected man was able to make an audio cassette recording of the guilty man and woman discussing the crime. In the process of carrying the tape he dropped it in water, but I believe was able to salvage the tape.
There was an African American detective or lawyer who had become aware of the events in question. He interrogated the woman and upon playing the tape for her, the woman followed with saying, “Anyone can clearly tell that that’s not my voice on that tape.”
A few minutes later, the male culprit is interrogated while the woman looks on from an observation room with (I believe) a one-way window.
As the male culprit begins to crack, the woman goes into panic mode and starts trying to scream at him through the glass in an attempt to tell him to stop talking.
I distinctly recall the African American detective/lawyer, while interrogating either the male culprit or the woman, saying, “What if I told you I made that tape?”
The final scene of the film shows the innocent man visiting the woman in prison. Incidentally, the innocent man and the guilty woman may have originally been a married couple. At their meeting in prison, she says that she is getting a lawyer to appeal her case. After their meeting, the final shot shows him driving away and it freezes the frame as the camera is directly on him inside his car and there are some words at the bottom of the screen I believe telling the audience the fate of the characters.
Thanks!