Detective Conan - S1E1139: The Sister Troubled by Her Naughty Brother

What's the Story?

Shigatsu Makabe comes to the Mouri Detective Agency with a request after malicious flyers were posted on his apartment condominium. Kogoro, who was conducting surveillance at the condominium, apprehends a suspicious young man, but... a few days later, a body is found in a unit of a luxury condominium.