Newlyweds Cora and Archie Thorogood return to his family's English mansion to start their life together. As

Archie's sister, Evelyn, and her fiancée, Roger, prepare for their wedding day, this may be the right time for Cora to impress the family – provided nothing goes wrong.

But disaster seems to follow Cora everywhere. After meeting Roger, Cora feels he is a splendid choice for Evelyn. However, the men at the mansion, including. Archie never liked Roger and view him as a bad choice. As Cora examines this inconsistency the mystery heightens when someone is found murdered in the mansion.

Cora, along with Archie, and her magical friends, Arve and Ola, investigate to discover the murderer. With help from Archie's Grandmother Elizabeth, and the Prince Iknokman, she must deal with Inspector Bevan from Scotland Yard who unhappily remembers her from a previous murder investigation. Her new mother-in-law is not pleased to welcome Cora, an American, into her family. Along with that a thief in the house is stealing valuable items. Will Cora and Archie find the murderer? Will Inspector Bevan arrest the two for interfering with the law? And will Iknokman be the thief's next prize?