Babylon Berlin: S04 - 2022 - 7/10

So, after S03 I decided I was done with this series.
Until I misread that S04 would be the final season.
Wrong, fool. Time covers 1931 (supposedly the series ends with 1933).
New characters are introduced, older ones elaborated on.
Fewer and fewer are compelling as individuals, their storylines less so.
Intriguing side adventure, however, follows Abe Gold on a quest through a doomed landscape.
Two major feuds dominate. War between rival crime gangs, and the schism between the SA and SS.
The latter is highly absorbing, especially using the historical figure of Walter Stennes.
Mixed season, superior to S03.