Tokyo is shaken by a series of brutal murders. You are Cerberus, the police’s top investigator — but your eyesight is fading. As your vision worsens, familiar methods become useless, and you must adapt.

The gameplay changes from chapter to chapter: from classic visual investigation to near-total darkness where you rely on sound, tactile cues, and logic. Conduct interrogations in the dark — detect lies through voice, pauses, and trembling, record conversations, and compare statements. Explore locations by “feeling” them with your cursor and reacting to audio cues. Your choices influence the progress of the case and the fate of the people in Tokyo.

Every decision carries weight: a missed clue, a wrong witness, or pressure from above can alter the investigation and unlock different endings. Uncover the connection between your illness and the murders — before your vision disappears completely.

Main features:

Progressive blindness: the field of view shrinks from ~70 percent to ~5 percent, changing the gameplay each chapter.

Audio-based interrogations: analyze voice, pauses, and trembling; use recordings and notes.

Tactile investigation: “feel” environments with the cursor and follow audio hints.

Nonlinear investigation: choices affect the story and accessible locations.

Atmospheric Tokyo: eavesdrop, build connections, and navigate between law and the streets.

Multiple unique endings depend on your decisions. Can you stop the killer before darkness takes over?