If you don't like this, we can't be friends.

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."

By the time the dramatic fireworks start popping off, each one feels earned.

Actress is magnificent and exudes a hypnotic screen presence in this affecting drama.