I read this one fanfic a long while ago and now I can't seem to find it anywhere. It had Olivia and Alex who get kidnapped by a man and kept in a caged area. I remember the beginning started with Olivia tied to a chair and Alex tied to the fencing of the cage. It had a part where Olivia gets left INA small dark room while the Alex is basically repeatedly raped by the man. I remember it ending by the kidnapper having a party upstairs with an undercover officer amongst them. Olivia gets raped again by the group of men and then gets saved.
I know it isn't the best description but does it sound familiar to anyone?