It's 1948 in Communist-controlled Prague, Czechoslovakia. A mind-reading act is commanded by the authorities to entertain at a private party. They discover what the authorities really want is for them to use their "powers" to expose spies and traitors to the regime. In addition, the anti-Communist Czech president has recently died a mysterious "suicide", and the officials want them to falsely swear in a statement that they knew the man and he was depressed and suicidal. Realizing the kind of trouble they're in for, they decide to escape using their best stage tricks.