In October 2009, the filmmakers went into an abandoned psychiatric hospital to explore the 'haunted' institution, famous for its radical treatment of patients with mental illness. Electroshock, insulin therapy, and lobotomies were commonplace. Once inside, the filmmakers quickly discovered that they were not alone.
Currently, you can only stream Greystone Park on Hoopla in the the United States.
Currently, you can only buy or rent Greystone Park on Vudu in the the United States, with prices starting from $3.99.
Greystone Park was released 12 years ago in 2012.
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