About the murder of Olof Palme Feb. 28, 1986. Palme was a strong willed and maverick Swedish prime minister. He was idealistic in the extreme in that he believed he could defeat evil forces in the world by the power of his moral stance and the strength of his convictions. New and old suspects and theories surface in this film. Plus a fairly new informer, Ivan von Birchan.

Whistle depicts the dreary off-hours of an ultra-technological hit-man who becomes 'involved' in the life of one of his victims. The hit-man's wife is not only fully cognizant of her husband's day job but she is also the cold-blooded contact with his bosses when the conscience crisis sets in!