In the mansion of a wealthy banker, Mr. Irving, a bold theft takes place: his wife’s diamonds, valued at more than twenty thousand dollars, vanish. The situation is delicate and admits of no delay; besides, the owner of the house insists on complete confidentiality. Therefore, the investigation is entrusted to one of the best detectives in the department—Garrison.
If within two days he manages to get the jewels back, he is promised five hundred dollars. And if, in addition, he can conduct the search without unnecessary noise or publicity, the reward will be doubled. What is behind such urgency, and why does Irving demand that everything be kept under the strictest secrecy—Garrison and his reliable assistants will have to find out.