Regression (Amenabar)

Tonight I went to the cinema to saw watch the last movie of from Amenabar, Regression. Despite my boyfriend figured figuring out the ending quite early soon, I didn't, and finally I was surprised with how the film ended and developeds its shelf.
It's a thriller about satanics sect abuses that occurred in U.S.A. It's based on real stories.
A policeman investigates what seems to be a sexual abuse crime, but suddenly everything seems to be conected with satanics practices and rituals. You will have to discover the rest of the story. I think this film is worths the money.