Frances Brookman has just received the phone call every mother dreads. Her daughter Naomi has been in a life-threatening accident.

As she races to the hospital, Frances catches sight of a child in another car – a girl screaming for help.

It's a split-second thing and looks can be deceptive.

She could follow the car, but can she live with the delay getting to her daughter? If she does nothing, can she live with herself?