True-crime author, Carly, and her husband Kevin take a vacation at a historical mansion on Crawford Island. Kevin thinks it will be a chance for them to reconnect, but Carly plans to research the puzzling unsolved murder of Diana Crawford.

In Egypt, 1888 Flinders Petrie finally broke in to the burial chamber of King Amenemhat III one of the wealthiest monarchs from the middle kingdom. After a year of digging, he finally peered into the resting place of the old king, only to find that the space had been stripped of everything. Four experts have been brought together to reopen the case to solve the mystery.