San Francisco, 1967. Experiments into the effects of LSD have revealed the extraordinary potential the drug can unlock in the human brain. Advocates of its mind-altering properties preach a new era of psychedelic enlightenment - people such as Dr Adam Laar, who put his theories to the test with a massive dose of the drug and became the powerful superbeing, Dr Trips. But from out of the desert comes the evil Caliban...