A housewife's accusation of rape against a young laborer ignites a legal battle that forces a renowned barrister to confront his own personal turmoil. James Kavanagh Q.C. is tasked with defending David Armstrong, the accused, while simultaneously navigating the disintegration of his marriage due to his wife's affair. The trial becomes a crucible, testing Kavanagh's professional integrity and his ability to maintain his personal life amidst the intense pressures of the courtroom and his home.

This installment of Kavanagh Q.C. appears to delve into complex moral and legal territory, as suggested by the premise of a rape accusation and the defense of the accused. The intertwining of a high-stakes courtroom drama with the protagonist's personal marital crisis indicates a focus on character depth and the emotional toll of professional life. The series is known for its realistic portrayal of legal proceedings and its exploration of the human element within the justice system. Viewers can expect a compelling narrative that balances legal strategy with the protagonist's internal conflicts, likely leading to a thought-provoking examination of truth and consequence.