Trapped in an abusive marriage, ten days from divorce Joanna Simpson is reported missing by her husband, Robert Brown. Quizzed by investigating officers, missing turns to murder as he admits killing Joanna.

On a summer evening in 2004, 8-year-old Mark Cummings goes out to play on the estate around the tower block where he lives with his family in Glasgow, Scotland. But when his mother calls him in for supper, Mark does not come home.