Glamour, gore, and debauched divorcées: Tatler.com exclusively reveals a first look at Towards Zero, the BBC’s new Agatha Christie adaptation

A scandalous celebrity divorce, a playboy tennis star, the bedridden chatelaine of a coastal country pile – it has all the makings of the soiree of the summer. But when Lady Tresselian hosts her recently remarried nephew, alongside his unfathomable ex-wife and her (far younger) replacement for an unorthodox party at the idyllic…