Second only to her record-breaking success The Mousetrap (still running in London more than 50 years after it premiered), Witness for the Prosecution is by far Christie’s most successful work for the stage. It premiered in 1953, with David Horne and Patricia Jessel lauded for their work as a defense attorney and the emotionally detached woman who becomes the crux of his current murder case, respectively. In 1957 – when Christie’s fame was at its peak – Witness was adapted into a successful film, which remains engaging to this day.