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."

One of the most extraordinary films you will see this year. Take that as you want.

It is interesting even when nothing much happens, which is for most of its 3-hour running time. Read full review