A loose adaptation of Adams’ novels, starting with Dirk Gently's Holistic Detective Agency (1987).
Not faithful to Adams, and I have no problem with that. Alas, what the adaptation preserves from Adams is the idea of self-contradiction in place of mere comedic incongruity: The detective who does not investigate, with coincidence in place of plot. The novel stuff is mostly stolen from US TV genre SF in a contemporary setting, obsessed with personal betrayal, plus a little Doctor Who (1963) and Twin Peaks (1990) on the side; not a smooth combination.
Samuel Barnett seems to be trying for Jim Carrey at times; he isn’t good. The Missing Persons and Blackwing duos are more fun, and the duo of Fiona Dourif and Mpho Koaho is head and shoulders above the rest. Dourif seems to be channeling her own father playing a more Zen Trashcan Man from The Stand (1994) in the role of Preacher’s Saint of Killers and it is hilarious. A show about her would have been worth watching.