Michael Frayn’s multi award-winning masterwork is a dazzling exploration of two brilliant minds and their motives. In Nazi occupied Copenhagen in 1941, a clandestine encounter took place between two Nobel Prize winning physicists, Dane Niels Bohr and Werner Heisenberg, a German. The men were old friends and long-term colleagues, but now found themselves on opposite sides of the divide. Under the watchful eye of Bohr’s wife, Margrethe, Frayn speculates on the debates which might have taken place, an exchange of transformative ideas which had huge implications for both the Nazis and the Allies, and for our world today. This totally absorbing historical detective story, conjured from a smattering of scientific facts, is a daring, fascinating and stimulating drama that enjoyed a hugely acclaimed run at the National Theatre before transferring to the West End and Broadway and winning the 2000 Tony Award for Best New Play.