The product of long-concealed FBI surveillance documents, Dangerous Friendship chronicles a history of Martin Luther King Jr. that the government kept secret from the public for years. The book tells the story of Stanley Levison, a well-known figure in the Communist Party-USA, who became one of King's closest friends and advisers, and the extent to which King, Levison, and many other freedom workers were surveilled by people at the very top of the U.S. security establishment.