Description Thieving children, a disguise-obsessed detective and a magical merry-go-round are woven together to tell one phantasmal tale. After their mother dies, Prosper and his brother, Bo, flee from Hamburg to Venice because an awful aunt plans to adopt only Bo. They live in an abandoned movie theater under the care of the Thief Lord, who claims to rob the city’s most elegant houses. When a mysterious man hires the Thief Lord to steal a wooden wing, the plan is altered when Victor, the detective Aunt Esther hired to track the brothers, discovers their camp.