Fifteen-year-old Christopher stands beside Mrs Shears’ dead dog Wellington, who's been speared with a garden fork. It’s seven minutes after midnight and Christopher is under suspicion. He writes down each fact of the 'case' in the hope of solving the mystery of who murdered Wellington.
Christopher has an extraordinary brain – he’s exceptional at maths but ill-equipped to interpret everyday life. Having never ventured alone beyond the end of his road, he detests being touched and he distrusts strangers. When his detective work takes him to the big city lights of London his world turns upside down.
Will he be able to cope with the bustling, stressful city? And will he be able to solve the curious incident of the dog in the night-time?