在幸福巅峰的婚礼上，新娘沙也香突然中毒倒下。摄影师樱庭苍玉（七五三掛龙也 饰）从拍摄照片中发现线索，推测毒被混入香槟。新郎林田和臣（藤井流星 饰）为了妻子决心亲自追查真相。调查过程中，沙也香的闺蜜、母亲等与会者的虚伪面孔被逐一揭开，所有来宾都成了可疑对象，而沙也香自己也隐藏着不堪过往。面对动机各异、性格扭曲的参宴者，两人携手追逐真相。本剧改编自夏原エヰジ的同名原著小说。
本剧改编自同名漫画。“拜托你！请让我观摩你自己一个人DIY的样子!!”少女小说家莉欧的烦恼，是她写不好正在挑战的轻熟女小说。根据责任编辑表示，问题似乎是出在“缺乏性感的吸引力”这点上……。但她没有任何性方面的经验，情急之下她只能病急乱投医。
The 7th Season rejoins Golden Globe winner Angela Lansbury as writer/detective Jessica Fletcher in the season that earned a Golden Globe nomination and two Primetime Emmy Award nominations! With her at the scene of the crime is an impressive lineup of guest stars, including Patricia Neal and the iconic Jerry Orbach. Whether Jessica is partnered with insurance investigator Dennis Stanton (Keith Michell), making her case in Nashville or even working to clear her own name, it's no mystery why the acclaimed series earned 41 Primetime Emmy Award nominations and 16 Golden Globe nominations during its many years of broadcast.
