Introduction

The third Messiah two-part film starring Ken Stott as the cerebral DCI Red Metcalfe, shot earlier this year in and around London's East End, comes to BBC ONE soon.

In Messiah III: The Promise Red fights his own conscience as he tries to stop a killer turn a London hospital into a graveyard of pain.

As he and his team battle to protect the innocent, a grotesque twist of fate threatens to tear them apart.

Neil Dudgeon returns as DI Duncan Warren and Frances Grey reprises her role as DS Kate Beauchamp.

American actress Michelle Forbes also returns to play Red's wife, Susan Metcalfe, in a poignant story of love and loss.

The cast also features: Liam Cunningham, Michael Maloney, Catherine Russell, Sam Troughton and Clare Holman.

Executive producer, Robert Cooper, says: "This Messiah is going to be the most powerful yet, with a moving and terrifying story from Lizzie Mickery and the most intense performance yet from the remarkable Ken Stott."

Messiah III: The Promise is produced by Sophie Gardiner (Eureka Street, The Many Lives Of Albert Walker) and Sanne Wohlenberg (Lucky Jim, Murphy's Law), and directed by David Drury (Prime Suspect III, The Whistle Blower, Defence Of The Realm).

Writer Lizzie Mickery's recent credits include: Every Time You Look At Me, Dirty War and Sinners.

Messiah III: The Promise is a co-production between BBC Northern Ireland Drama and Paramount International Television in association with Messiah Three Films.

The executive producers are Robert Cooper and Kate Triggs (BBC Northern Ireland) and Chris Ottinger (Paramount International Television).

Update - Messiah III: The Promise will be broadcast on BBC ONE on Monday 30 August and Tuesday 31 August at 9.00pm.