Stolen from the Heart (movie, 2000)

A former prostitute kidnaps a baby boy at birth to satisfy her drug-dealing husband, who has told her that he is going to divorce her and put her out on the streets if she cannot produce him a son. Obviously the real mother becomes emotionally wrought and determined to get her baby back. Barbara Mandrell gets thrown into all of this mess as the mother's mother, who just happens to be beset with heart problems.