Cyanide movie is inside story of Rajiv Gandhi assassinators has been careful throughout. He never give room for any controversy except the often announcement of a Swamiji is helping the Shivarasan gang to escape to Nepal everything is clean and tidy.What did the assassinators of Rajiv Gandhi the former Prime Minister who was killed in a human bomb explosion did for 20 days in Bangalore is the crux of the matter here in 'Cyanide'.