1990年上映，約翰·馬登執導，由約翰·肖,凱文·沃特利,杰弗里·帕爾默,大衛·尼爾,芭芭拉·雷吉-亨特,皮爾斯·奎格利,邁克爾·阿特威爾,謝麗爾·坎貝爾,John,Joyce,伊恩·布林布爾,湯姆·威爾金森,Irene,Richard,喬治·科斯蒂安,Denys,Hawthorne,Sydnee,Blake,柯林·德克斯特等主演的摩斯探長第四季在英國發行，豆瓣評分和口碑都很不錯，摩斯探長第四季手機在線觀看等資源均是網絡收集而來。《摩斯探長第四季》HD1280/HD1080p/BD720P/BD1080P/百度云藍光高清版/在線觀看。
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.
