故事以全世界前1%的富豪为背景，因为种种的阴错阳差，Imogene成为了豪华邮轮上一起密室谋杀案的头号嫌疑犯，为了证明自己的清白，她必须与侦探Rufus合作破案，但在这艘奢华的地中海邮轮上，所有娇生惯养的宾客和疲惫不堪的员工都有嫌疑。

In the new season of Miss Scarlet and The Duke, Eliza has taken over the business of Nash & Sons (not that he has any sons) and things are not going entirely smoothly, although help comes from some familiar sources. Outside of work, her relationship with William builds towards a looming decision that will shape both their lives.