Two boys stumble across a crashed car in nearby woodland. The driver's seat is covered in blood, the airbag blown, but the car is empty.

So where is the driver?

As part of the Major Crimes Investigation Team, DI Chase and his partner, DS Swift, are called in to investigate. It's not long before the bodies of the owner of the car and her daughter are discovered in their home.

Who killed them? And who was driving the car.

With a murderer on their patch, can the detectives unravel the mystifying clues before the perpetrator goes on the run?