It's very fun, light and pleasant detective story with good dresses of XX century's beginning and modern rock-music. The soundtrack is great.
It seems that the authors saw "Murdoch Mysteries", "Ripper Street", "Copper" and now make smth. about it but in Krakow. But. They DIDN'T SEE "Taboo" )))) really )) Because "Taboo" was released only 1 month before "Belle Epoque". We can think about some similarity of main characters but it's only coincidence.