A terrifying sound. A hidden society. A city on the edge of madness.

When a wave of unexplained deaths rattles Victorian London, the victims share one thing in common: no wounds, no poison, and no trace of violence—only a descent into madness marked by vivid hallucinations and overwhelming fear.

With logic as his only ally, Sherlock Holmes is drawn into a case unlike any before. Whispers point to a mind-altering phenomenon known only as the Devil of Fear—a frequency that invades the mind and fractures reality. Behind it lurks a secretive group known as The Architects, whose mission is to remake the world through the weaponization of terror.

At the heart of their plot lies Room Zero—a space that doesn't physically exist, yet somehow thrives inside human consciousness. As London teeters on the brink of hysteria, Holmes is pursued by a shadowy presence called The Watcher, and haunted by the sound of a cursed bell that rings only once—for those doomed never to awaken.

Racing against time, Holmes must confront a force that bends the laws of reality, unravels sanity, and threatens to drag an entire city into a nightmare from which there is no escape.

This is a gripping supernatural mystery thriller woven with psychological horror, suspense, and gothic atmosphere—an unforgettable journey into the unknown.