A good cast, especially Alexandra Roach, with an interesting premise and nice use of locations. The train interior is more believable than the exterior, with its slightly strange, Azuma-like "loco" (trainspotters will know what I mean). I'll continue with it as the narrative is gaining momentum, but I'm still not quite sure what genre it is: soap, comedy, satire, thriller, or a mixture of all the above (?).