A maniac is loose in London, decapitating his victims and sending the heads to Scotland Yard.
Emil goes to Berlin to see his grandmother with a large amount of money and is offered sweets by a strange man that make him sleep. He wakes up at his stop with no money. It is up to him and a group of children to save the day.
Mysterious murders committed by a criminal have kept the public on their toes and the police have mistakenly accused an imposter of the crimes.
