A girl from north-east India is murdered in Delhi. The main suspect is her 'Indian' boyfriend, but there isn't enough evidence to prove his guilt. Amid a growing outcry about police neglect and racial injustice, detective Arjun Arora reluctantly takes on this case. Immediately, he finds himself propelled into a tangled investigation that leads him beyond the hills of Nagaland and Manipur to the Indo-Myanmar border with new suspects emerging at every turn, including an American working at the US Embassy who may or may not be a CIA spy. The search for answers embroils him in the dangerous new realities of the North-east--riven with strife and suffering--and also brings him face-to-face with an old enemy, culminating in an unexpected climax.