United Kingdom, June 24 -- Hannah Murray has recalled a harrowing experience when she was told by a cult leader she had been "possessed by a demon" and he had "performed an exorcism" on her.

The Game of Thrones star previously enrolled in an energy-healing course in a bid to "enter a world of make-believe" and "feel like a shaman", but she was "completely taken in" by a cult leader, who she refers to as Steve, which resulted in her being admitted to a psychiatric ward.

In an excerpt from her new memoir, The Make-Believe: A Memoir of Magic and Madness, published in The Cut magazine, Hannah writes: "I was on the last day of an energy-healing course held in the basement of a hotel in London, hours away from my initiation ceremony, when I w...