Fascinating chap Sergei Korolev, denounced to the NKVD by colleagues over what sounds like office politics, tortured and sent to the Gulag for 10 years (including the awful Kolyma gold mining camps, which were some of the worst) rehabilitated and goes on to become arguably the greatest ever rocket designer - with a legacy that includes the ancestors of todays most succesful launchers used by the Russians and ESA.