Nils Patrik Johansson (Astral Doors, Lion's Share, Civil War) presents his most important work of his career – a concept album about the unresolved murder of Swedish Prime Minister Olof Palme in 1986. Olof Palme was murdered on February 28, 1986 – The Great Conspiracy arrives on the 30th anniversary of his death. On the album, Johansson follows the main sources and traces as well as a possible solution.