In the U.S., CIA director Allen Dulles launches a program codenamed MK-ULTRA, which involves the surreptitious use of drugs such as LSD to manipulate individual mental states and to alter brain function. The specific goals of the program are multifold, but focus on drugging world leaders in order to discredit them, developing a truth serum, and making people highly susceptible to suggestion. All of this is top secret, and files relating to MK-ULTRA’s existence are destroyed in 1973, but the truth about the program still emerges in the mid-seventies after a congressional investigation.