一名沉稳冷静如狡诈猎手的老刑警。三位前程似锦却负罪而行的大学生。一个风光背后罪行累累的煤矿老板。这三个不同阶层的人却因为一宗命案在十八年后碰撞到了起，在斗智斗勇的角力过程中，谁才是罪大恶极的幕后真凶？一个满城风雨的命案。一场触目惊心的谋杀。一桩离奇的矿难事故。三个不同的案子因为一个警察交织在了一起，跨越十八年的调查，终于引出了其中三个案子背后隐藏的惊人秘密。
As Murder, She Wrote saunters through its sixth (of an eventual 12) season, star Angela Lansbury maintains her eternally buoyant and inquisitive air as Jessica Fletcher, professional writer and amateur sleuth. Though Jessica continued to investigate murders in her home town of Cabot Cove and elsewhere (in the worlds of high finance, opera, and voodoo, among other settings), this season began the practice of guest detective episodes, introduced by Jessica as either a story she wrote or a tale told by a friend, but starring a variety of quirky investigators: An ex-football player (Ken Howard, The White Shadow) paired with a clever poodle; a television crime-show producer who solved crime in real life (Diana Canova, Soap); a stout Irish detective (longtime character actor Pat Hingle); an abrasive homicide cop (Barry Newman, Vanishing Point); as well as recurring Murder, She Wrote characters like former jewel thief Dennis Stanton (Keith Michell) and British secret agent Michael Haggerty (Len Cariou). The producers were obviously hoping to use Murder, She Wrote's popularity to spin-off new series, but nothing from this season took off and viewer resistance soon brought the practice to an end. Executives must have been surprised to discover that, though murder mysteries are plot-driven, this show's success depends heavily on the undeniable charm of star Lansbury. Still, these one-off episodes are of a consistent quality with Lansbury's, and viewers open to variety will enjoy them just as much. The rest of the season features the usual astonishing array of guests, including movie stars old (Donald O'Connor, Singin' in the Rain) and recent (Elliott Gould, The Long Goodbye), television stalwarts (Shirley Jones, The Partridge Family; Jerry Stiller, The King of Queens; Doris Roberts, Everyone Loves Raymond; Kevin Tighe, Battlestar Galactica; and Gavin McLeod, The Love Boat), and D-list celebrities to die for (Dack Rambo, Morgan Brittany, Susan Anton, and more).
故事发生在清朝乾隆年间，陈家洛（乔振宇 饰）接替了义父于万亭（刘德凯 饰）之位，成为了红花会总舵主，并意外得知了当今圣上乾隆（郑少秋 饰）的真实身世。那边厢，红花会四当家文泰来（刘乃艺 饰）和妻子骆冰（齐芳 饰）遭遇劲敌鹰爪，被困客栈，所幸得到陆菲青的帮助，陆菲青将两人藏至周仲英的家中。 然而，周仲英的儿子却在无意之中暴露了文泰来夫妇的藏身之处，导致文泰来被朝廷逮捕，红花会众人误以为周仲英出卖了文泰来，两方人马大打出手伤亡惨重。此时陈家洛风尘仆仆的赶来，一番波折总算弄清了事情的原委，洗清了周仲英的冤屈。与此同时，和亲王打起了谋权篡位的主意，使得乾隆为了保住秘密想要杀了文泰来灭口。
