改编自作者婉之的同名小说，由芒果TV出品，讲述了统计学专业的佛系女学生和带有强迫症的高智商教授之间的爱情故事。
Angela Lansbury returns as mystery writer Jessica Fletcher, and more people are turning up dead wherever she ventures! From killer fashion to ancient curses to death at the rodeo, Jessica Fletcher is the only one clever enough to read between the lines and see the clues nobody knew were there.
骊城公安局最年轻的法医齐思哲（罗云熙饰），因一场车祸失去了女友俞菲，但他发觉意外的背后似乎隐藏着神秘的幕后推手。为了调查真相，齐思哲入职成为河城市公安局的刑侦法医，却被迫卷入一桩桩令人细思极恐的奇诡悬案之中，身亡许久的被害者被重重蛛丝包裹，失踪的尸体出现在标本室的福尔马林中……在侦破过程中，他与祝青越（刘雅瑟饰），韩烽（江奇霖饰）强强联合，抽丝剥茧屡破奇案，而牵涉当年俞菲之死的“原钻”毒品案，也逐渐展露冰山一角……
