Morse finds himself the subject of a murder investigation when his friend, Beryl Newsome, is murdered at a rehearsal of the Magic Flute and he foolishly touches the murder weapon. Morse is suspended and DCI Bottomley, with DS Lewis assisting him, is put in charge of the case. Morse feels that he was set-up and looks to his past to see who, among the many criminals he arrested, might now be setting about seeking revenge. When someone scratches masonic symbols all over his car and he is reported for erratic driving, Morse wonders if Masons may somehow be involved. When a large number of his personal items are found in Beryl's apartment, Morse is placed under arrest.
如何评价《摩斯探长第四季》
优酷网友热评：慕名去看，画面很精致，演技也在线，台词意味深长，编剧非常用力，最终呈现出来的是一支华丽的舞蹈。
来自网易云网友的评价：导演以自身的传统美学功底，对电影的写实艺术特性也有精深的理解和把握，他特别擅以生动的细节描绘人物的内心活动，并调动电影的各种艺术元素为塑造人物服务。
导演是电影的灵魂和核心，他们的执导能力直接影响到电影的质量。优秀的导演能够准确把握故事的节奏和情感表达，通过镜头语言和艺术手法将故事完整呈现给观众。他们的独特视角和风格也是评价电影好坏的重要标准之一。
作为一门艺术，不仅要有优秀的故事和表演，还需要具备出色的技术表现。摄影、音效、音乐和特效等方面的表现都能够提升电影的观赏价值。技术的精湛与细腻能够帮助电影更好地传达情感和故事，增强观众的观影体验。
