When people talk about "a Poirot mystery" they are usually thinking of traits that are missing from Orient Express or Nile, or forgetting some of the missteps and awkward experimenting in those works. But the ABC Murders has it all perfectly; the police seemingly baffled, Japp and Hastings along for the hunt, a diabolical plot only solved through Poirot peeling back later after layer of mystery - many of which you can see through yourself, but never quite put together. It may be the best Poirot.