Basic plot

Our basic plot idea:
1. Mother and daughter (young teenager) are driving along a deserted road.
2.The mother spots something in the road (which seems to be a dead body).
3. Mother gets out of the car.
4. Rustling in the bushes, footsteps and a figure running past.
5. The car starts up and the mother turns round.
6. The car drives off with the child inside.
7. The mother falls to the floor in disbelief.