How do you solve a murder in a post-fact world? Especially when sailing the Mediterranean on an ocean liner filled with the wealthy and powerful. Everyone on board is hiding something… but is one of them a killer? That’s what the world’s once greatest detective, Rufus Cotesworth, and his protégée, Imogene, aim to discover.

A Seattle history professor, drawn back to his estranged family on the Oregon coast to execute his late mother's estate, is reacquainted with his best friend from childhood, with whom he has a long-awaited tryst. Caught in an accelerating series of events, he discovers aspects of his father's New Age cult which take on a dangerous and apocalyptic significance.

Nick and Molly, commitment-phobic and busy professionals with little in common, are asked to be the best man and maid of honor at the wedding of their mutual friends, Amy and Jamie.