High SOCIETY

BELGRAVIA

Stream* or watch from May 17, Sundays at 8.30pm on BBC First [116]

A period drama with fine dresses, posh etiquette and a distinct division of social class, infused with dark secrets, ambition and resentment? Sounds like classic Downton Abbey territory.

But while new six-part production , adapted by creator Julian Fellowes from his own novel, shares familiar strands, there are marked differences. Since it takes its plot from a 400-page novel, the drama is a closed story rather than open-ended like , meaning that it’s unlikely it will return for a second