Case Closed

Season 1, Episode 664

Episode Title: The Great Dog Coeur's Triumph 2

Air Date: 2012-07-14

Overview:

The Detective Boys find a strange map on the back of a piece of paper, with many 'x's at different locations. As the group visits each house, they are able to figure about the meaning behind the 'x's, as well as the identity of the murderer.