Someone has stolen all the wages for all the employees at a major company. The culprit was apprehended through a discarded cigarette, but as the whereabouts of the missing money is still unknown, a reward is being offered for anyone who finds it. Kyousuke happens upon a coded message that seems to indicate the hiding place. Leaving Takuboku behind since he's still cut ties with him, Kyousuke sets out with young Hirai to decipher the note.
Kindaichi-sensei, you think 
that this is a code
كيندايتشي-سينسي، تعتقد أنّ هذه شفرة
Kindaichi.
D’après vous,
Professor Kindaichi,
Kindaichi, você acha que esse código
Учитель Киндайти, 
вы думаете, что этот код