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."

Go in cold, and you're likely to emerge with your blood boiling. This has to be seen to be believed.

One of the film's great tricks is that, for a time, you think it will go down a rabbit hole of unrealistic glorification.

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