Upstairs: the wealthy, aristocratic Bellamys. Downstairs: their loyal and lively servants. For nearly 30 years, they share a fashionable townhouse at 165 Eaton Place in London’s posh Belgravia neighborhood, surviving social change, political upheaval, scandals, and the horrors of the First World War.

An American ex-GI takes a job as a truck driver to support his British war bride Connie. It isn't long, however, before Harry is blackmailed into joining a smuggling operation run by a conniving criminal.