Novichok TV drama's makers: 'A deadly, invisible threat – it resonates now'

Director Saul Dibb and producer Karen Lewis on their new BBC One drama The Salisbury Poisonings

An invisible killer that is passed through touch, homes and businesses in lockdown, desperate efforts to test, track and trace, community resilience in the face of tragedy.

It sounds very much like life in the time of Covid-19, but this is also the world depicted in a high-profile BBC One drama focusing on the aftermath of the nerve agent attack on the former Russian spy Sergei Skripal in Wiltshire.