Penn and Teller set out to debunk reflexology, which is applying pressure to the feet to cure various illnesses; and magnet therapy, which is using magnets on the body to do the same. They also investigate chiropractors and discover that while these doctors can deliver the same benefits as good masseurs, they aren't able to treat diseases unrelated to the spine. Meanwhile, they test the gullibility of the public at a local mall by offering magnetic hats and "snail mucus" facials.
Yes, the people who got snail mucus facials allowed the jokesters to put snails on their faces. The power of suggestion allowed them to think their wrinkles were actually disappearing.
It was good to see the dubious healers exposed for what they are; I was less amused to see the gulls at the mall, particularly the woman in the magnetic hat. Penn and Teller had to make their point, I suppose; and certainly their ridicule could have been worse. I have to tentatively approve their methods, even though my heart is not in it.
I disliked Penn's smarmy expression of distaste at a chiropractor who treats children. I agree with Penn. But he ought to have made his point and left it alone. There was no need to preen himself with his finer moral feelings. That undercuts his point; it doesn't reinforce it.
