Blending excellent reporting and strong storytelling, this is a disturbing film truly stranger than fiction

A film with more than the usual spoiler issues. Talking about it in any detail feels akin to handing you a gift-wrapped present and saying, "I hope you like it -- It's a thriller about a diabolical secret experiment."

It is both painfully honest and laugh-out-loud funny at the same time.

A film of deceptively outspoken contemporary relevance, this is cinema at its most alert, alarming and alive.