"Benares is older than history, older than tradition, older even than legend, and looks twice as old as all of them put together." - Mark Twain    
In the chilling winter month of January, Hawa Singh, a Senior Inspector from Delhi Crime branch comes to Benares accompanying his 89-year-old terminally ill father, Fauja Singh, whose last wish is to die in the holy city. They take a room in Mukti Bhavan, the Salvation House, one of the many death houses in Benares. During one of his early morning visits, Hawa Singh discovers the body of a young female floating in the Ganges near the Ghats.   
The female turns out to be Eva Marie Cassidy, a US citizen, working as a researcher with the Vatican Observatory, one of the oldest astronomical research institutions in the world. The Vatican Observatory Research Group operates the 1.8m Alice P. Lennon Telescope with its Thomas J. Bannan Astrophysics Facility, known together as the Vatican Advanced Technology Telescope (VATT) funded by the Vatican and directly under the Pope.    
The autopsy reports confirm that Eva was alive when her heart was wrenched out that resulted in her death. As the local police starts to investigate, Hawa Singh too gets embroiled in the investigation. With constant bickering with his ailing father and a bullet lodged near his brain, a result from one of the shoot-outs, Hawa Singh fights through the dense fog and chill to track the killer.     
In this, the US sends a young female FBI officer, Ruby Malik, half-Indian, to assist in the investigation of the murder. This turns out to be her first visit to India after a gap of twenty years and she lands in the by lanes of Benares. She starts working with the local police but finds the steely attitude and investigation methods of Hawa Singh better and they end up teaming together.   
Ruby brings with her a whole baggage of sophisticated training at the FBI Centre, the various tactics and methods taught to them by experts while Hawa Singh uses his local and earthy techniques. Hawa Singh finds out that Eva was researching something about Vedic astrology and had met many scholars and also Anant Narayan Singh, the figurehead king of Benares.  

Agent: Anuj
Edit: Sharvani