The narrative unfolds over a single day inside a Mumbai apartment complex. Sanya Sinha (played by Khushalii Kumar in her acting debut), a woman diagnosed with a delusional personality disorder, is taken hostage by an escaped terrorist named Haq Gul (Aparshakti Khurana). As the police, led by ACP Harishchandra Malik (Darshan Kumar), surround the building, Sanya's husband, Yatharth Sinha (R. Madhavan), arrives at the scene.