Actually quite ludicrous in terms of plot lines ,but if you like glimpses of the 1950s, old cars, clothes , etc, it's quite entertaining. Terrible script and rather wooden acting.
Could only stand so much and then stopped watching -it's rather insulting to the intelligence.
As someone else has said , "issues" of the modern day feel like they have been shoe-horned in so that we can be taught about them , eg racism, rather like they are in the dreadful mush that is "Call the Midwife " . In this case , the racism involving a black man seems totally unconnected to the plot. As I say, shoe-horned in. In fact it reminded me quite a lot of "Call the Midwife" in that regard. Honestly, I believe 100% in institutional racism but this sort of simplistic nonsense doesn't help the fight against it.