The mystery film depicts a high profile case at the Gingerbread House Palace. Only Hansel and Gretel can find the King, for they are expert agents of a confidential bureau of magical investigation. The story follows Gretel, one of the top agents in the top-secret Department of Magical Security, as The mystery film depicts a high profile case at the Gingerbread House Palace. Only Hansel and Gretel can find the King, for they are expert agents of a confidential bureau of magical investigation. The story follows Gretel, one of the top agents in the top-secret Department of Magical Security, as she investigates the crime of the century. Her partner becomes her own brother Hansel — a well-known fraudster. The scammer Hansel and Gretel super-agent will team up for a crime thriller plot.