When ex-con artist Harry claims that a secret treasure is hidden inside Candleshoe, an English estate, he creates an elaborate plan to find and steal the prize. By convincing a girl named Casey to impersonate the estate owner's long-lost granddaughter, Harry hopes to uncover the treasure's location. But when Casey has a change of heart, she must follow the clues and find the treasure, in order to save Candleshoe and stop Harry before it is too late.

Five famous literary detective characters and their sidekicks are invited to a bizarre mansion to solve an even stranger mystery.

A debonair angel comes to Earth to help an Episcopalian bishop and his wife in their quest to raise money for the new church.