Neo-London, 2021 in an alternate future that has diverged from our own while retaining the city's familiar grey atmosphere. Arthur Oliver is a private detective with more experience than active cases. He is pulled into a new one when Richard Kersey — a businessman operating in the local coffee trade — disappears without explanation. The family believes one of Kersey's business partners is responsible. To investigate without triggering a cover-up, Arthur must do something he has not done before: go undercover as a businessman himself, managing the operational reality of a coffee enterprise while simultaneously working the criminal case that brought him here.