Slow pace in the most part of the movie.

This is a tender, generous movie that likes its characters and presents them as real people, full of flaws and strengths.

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."

Strong acting helps the film overcome an uncertain premise and create characters that hold our attention absolutely.