One of Us

After the brutal murder of their children, the Elliot and Douglas families are shocked when the killer turns up on their door step that night. His fate lies in their hands - will they show mercy or get their revenge?

When the police come knocking, the Elliots and Douglases decide to cover up Lee's murder. But who is the perpetrator? And why were Adam and Grace killed in the first case? Meanwhile Juliet's actions have tragic unexpected consequences.

Secrets and lies begin to unravel as Jamie makes a fateful decision and Rob must decide who to protect. The police are closing in on the two families, but Juliet's own crimes are coming home to roost.

With Rob in jail, Claire is still desperately hunting for answers. Could Adam and Grace's wedding video hold the key to the mystery? When she makes a shocking discovery, the truth is more terrible than she could ever have imagined and will change all of their lives forever.

This featurette looks at the writers behind One of Us - Jack and Harry Williams, who also wrote The Missing and Tripped.

The cast and crew discuss the use of the isolated parts of the rural Highlands of Scotland and Edinburgh as the filming locations for One of Us.

A closer look at how the scene ‘Burying the Car’ was created.

A closer look at how the scene ‘Car in a Storm’ was created.

Go behind the scenes of the gripping thriller One of Us.