Sonoko, Ran, Eisuke and Conan were hiking to Sonoko's mountain villa when they discovered the bridge leading to the lodge had collapsed due to disrepair. Out of range of mobile phone signals, they went to a neighbouring villa to request the use of the house phone. They learned that it was recently bought over by a music group "Dorcus" as a den for composing new music. The band members revealed that they got the villa dirt cheap as it was supposed to be haunted.