Olly is a young boy whose father died early, whose mother is now ill, and who is bullied at school by Bobby and his crew while being scolded by teachers daily. One day Bobby drags Olly and the others into a spooky mansion where they steal parts of something — and get caught by the elderly owner, Joseph, who calls himself a watchmaker. Joseph promises not to hurt Olly if he retrieves the stolen parts from Bobby. What follows is more than a simple errand.