In May 1940, a number of Mexican communists – disguised as police – attack the home of Leon Trotsky, the former leader of the Russian Revolution. Trotsky and his wife survive the attack, but Trotsky realizes that his enemy Stalin will continue to haunt him until his death. He decides to leave a political will in which he tells for the first time about his involvement in the Russian Revolution. He invites a Canadian Stalinist journalist to write his memoirs. For if he can convince him of his principles, he can do the same with all mankind.