本片是一部英国剧情片，上映于2009-02-28，由比利·埃尔特林厄姆导演，由凯文·沃特利/劳伦斯·福克斯/克莱尔·霍尔曼主演。
剧情简介：A student production of The Merchant of Venice takes real-life deadly turn when a cast member is killed using a prop knife. Apart from the jealous ensemble cast who can't even muster fake tears over the loss of their colleague, there is an audience of suspects to consider — a career con man, an egotistical television personality and a young man who just might have killed to get a part in the play. Lewis and Hathaway methodically try to make sense of the murderous plot, but before they do, another death occurs with a Shakespearean sensibility. As the final act is about to unfold, the case takes an intensely personal turn for Lewis, bringing back traumatic memories and invoking a lesson in mercy.
外文名：Lewis: The Quality of Mercy
类型：剧情 / 悬疑 / 犯罪
地区：英国
导演：比利·埃尔特林厄姆
编剧：艾伦·普拉特
演员：凯文·沃特利 / 劳伦斯·福克斯 / 克莱尔·霍尔曼 / 丽贝卡·弗朗特 / 格威利姆·李
