Friend sucked in by psychic (con artist)

Help

I have a dear friend who was feeling very low one year ago and has been seeing a psychic. My friend has been sucked dry of everything, emotions, soul and cash. The psychic has now ramped up the game by telling my friend to keep everyone away, not to see anyone, not to have anyone step inside the house, no friends, no family, nothing. Obviously to me, the next development will be for my friend to hand over an even bigger chunk of money, and I fear it could lead to my friend being taken away somewhere.

I am desperately trying to find an answer, my friend will not listen to anything from anyone, absolutely nothing.