A woman is accused of killing her husband, but is she actually guilty? Inspired by a true historical case. Liverpool, England, 1889: In the shadowy streets, the air is thick with secrets and the line between guilt and innocence blurs. Twenty-six-year-old Constance Sullivan is brought to trial charged with poisoning her husband, William. But William was no ordinary victim… As Constance's barrister fights to prove her innocence, a sinister web of deception unravels, exposing the dark underbelly of their seemingly idyllic marriage. One by one, witnesses emerge with incriminating testimony and facts about the dark side of Constance and William’s marriage are revealed. For many, the widow’s guilt seems clear. But is someone holding the key to the whole truth?