Created and written by Tom Edge, the six-part thriller follows the mysterious disappearance of a Scottish fishing trawler and a death on board a Trident nuclear submarine.
The resulting chaos leads to a tense conflict between the police, Navy and British security, as they each try to deal with the situation in their own way.
Written and created by Tom Edge (The Crown), Vigil is produced by World Productions, the producers behind Line Of Duty and Bodyguard.
Bullmore burst onto screens almost 30 years ago as the gutsy Steph Barnes in Coronation Street and has gone on to star in I’m Alan Partridge, Happy Valley and Scott and Bailey, which she also wrote for.
She finds being both an actress and a writer allows her to always find inspiration for storytelling.
Created by RTS Award-winning writer Nicole Taylor (Three Girls), the emotional thriller focuses on wealthy couple Dan (Compston) and Emily (Rundle) who are head over heels in love and live a beautiful house just outside of Glasgow.
Their lives seem perfect, but there is one thing missing: a baby.
A chance encounter introduces them to Kaya – played by Mirren Mack in her television debut – an 18-year-old from the other side of the city.
