Kaspar Krone is a world-renowned circus clown, and a man in some deep trouble. Drowning in gambling debt and wanted for tax evasion, Krone is drafted into the service of a mysterious order of nuns who promise him reprieve in return for his help safeguarding a group of children with mystical abilities that Krone also shares. When one of the children goes missing, Krone sets off to find the young girl and bring her back, making a shocking series of discoveries along the way.