The clematis tree

"Opens with a party in sunny Surrey garden. It is a happy day, with relations and friends celebrating the christening of Mark and Claire's new daughter, Pippa. Then, disaster. Jeremy, their young son, spots a pet rabbit racing across the large garden. Giving chase, Jeremy forgets what he has been told countless times and rushes through the main gate and out into the lane. A speeding sports car knocks him down and although Jeremy survives, he is now severely brain-damaged."--Jacket.