A provocative thriller which sees an eminent scientist caught up in a damaging and compromising lie. Based on the novel by Louise Doughty.

Married with two adult children, Yvonne Carmichael (Emily Watson) lives a contented, conventional suburban life. But her world spirals into chaos when a chance encounter leads to an impulsive, passionate affair with a charismatic stranger (Ben Chaplin). Despite all her careful plans to keep her home life and career safe and separate from her affair, fantasy and reality soon overlap and everything she values is put at risk, as a life-changing act of violence leads to a Crown Court trial.—BBC Media Centre