December 11th 1930, British India
The sleepy Himalayan hill resort of Mussoorie is shaken by the murder of a rich British colonel. Hundreds of kilometres away in New Delhi, Chief Inspector Malcolm Priestly receives an urgent message from his friend, John Harrison. Harrison informs Priestly that he has been arrested for the murder and pleads with him to leave for Mussoorie immediately.
Malcolm Priestly arrives in Mussoorie with his long-time assistant, Dr. Prem Singh. The inspector in charge, David Atkins, informs them that the case against John Harrison looks open and shut. He has identified a clear motive, opportunity and even the rifle with a single missing bullet used in the shooting. As they continue their investigation, there is another dramatic development which seems to reconfirm John Harrison's guilt…..