"And it's graphic and vile and terrifying. Because you see, the thing is, they threaten him with his worst nightmare and don't tell him why, and the way he gets out of it, the way it turns out, is by saying 'do it to Julia' and before it had been all true love and nobility and such, and as soon as he decides this he's let go. And then a long time later, the two of them meet in the coffee shop, both utterly broken, and they know what they did to each other,"

and Darren is getting pretty hysterical just remembering it, actually. Well, gesturing urgently and expressively, anyways.