London's richest borough hides a dark side that Chelsea local DI Max Arnold knows all too well. Killers lurk among the art galleries and luxury homes, and it₂s up to Max and new partner Layla Walsh to expose them.
Now retired and living in self-imposed exile in the world's most glamorous city, Poirot reluctantly attends a sßnce at a decaying, haunted palazzo. When one of the guests is murdered, the detective is thrust into a sinister world of shadows and secrets.