Detective Conan S01 E1143 The Ranpo Mansion Murder Case (2)

"One truth prevails."

While Conan and the Detective Boys are visiting the Edogawa Ranpo Residence with Kobayashi-sensei, a series of murders occur. Conan realizes the case isn't over yet and rushes to solve the crime before another victim can be killed, but the culprit is already closing in on their next target.