A legendary Maestro. A silent killer. A melody no one heard... until now.

When the brilliant Surajit Bose, a titan of music and science, is found dead without a single mark, his opulent Mumbai home becomes a stage for the impossible. How can a man vanish from life, leaving no trace of violence, no whisper of a struggle?

Enter Inspector Abhay Dujo, a detective whose intuition cuts through the noise, but even his seasoned mind reels before a killer operating beyond the visible spectrum. His only hope: Bisu, a young, reclusive tech genius whose grasp of unheard frequencies and hidden data is as profound as it is unnerving.

As their unlikely partnership delves into Bose's groundbreaking work on 'The Invisible Melody'—a discovery capable of manipulating the very essence of human consciousness—they uncover a chilling family betrayal, a legacy twisted by envy, and a weapon that weaponized the air itself.

In a world where progress outpaces ethics, and ambition turns deadly, Dujo and Bisu must decipher the silent symphony of a killer before the next note strikes. Can they expose the unseen truth before the final, fatal harmony plays out?