Episode Description: Beware, spoilers! To read - hover over the text.
While investigating the murder of a treasure hunter, castle and Beckett discover that the case involves the mysterious murder of 1947, in which was involved a private detective. Castle realizes that the only way to solve the current murder — solve a murder from the past. With the help of an old private detective's diary the 40-ies, which found the team of homicide, castle begins to imagine that some of the detectives and his friends — people from the diary.