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."

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

While it doesn't offer any answers, it both thrills and makes you think.

The best films of this genre always show a path and provide a takeaway for being a better person.