«Nights in Berlin» by Janice Law

Francis Bacon has never cared much for country living, so he is overjoyed when his father sends him to Berlin as punishment for his not-so-innocent flirtations with the other boys at school. With afternoons at the cinema, dinner at the Hotel Adlon, and nights at the most outrageous cabarets in Germany - and in his uncle Lastings' bed - he'll fit right in.

The Great War having ended over a decade ago, and its resulting economic turmoil in the past, Germany is enjoying the 'Golden Twenties' - a time of healthy fiscal growth, and creative and sexual resurgence, centered in Berlin. Yet dark clouds are gathering as Hitler consolidates power within the Nazi Party and brownshirts march through the streets. As tensions rise, Francis finds his uncle Lastings busy welcoming countless men into his hotel room - some invited for pleasure, others to be recruited for the fight against Bolshevism. But when the Nazis send Lastings fleeing for his life, Francis is left alone, penniless, and hunted, with only his keen sense of hedonism to distract him from a city that gets more menacing every night. Nights in Berlin is the 4th book in the Francis Bacon Mysteries, but you may enjoy reading the series in any order.