Decline and Fall (2017) is British comedy series based on the 1928 epynomous novel by Evelyn Waugh,
Paul Pennyfeather is 'sent down' or expelled from Oxford unjustly. Because his guardian won't give him access to his inheritance, he has to make a living as a teacher at an obscure boarding school in Wales.
The affable, kind and naive young man falls in love with a woman who traffics women. Because she is enormously wealthy, she is popular and 'respectable.'