Movie where Guantanamo bay guard has a strange friendship with an inmate. After a rave party, the guard hallucinates that he is an inmate and imagines that he is being tortured and brainwashed. There is a scene where a female guard puts on music and asks him whether he knows the song. I don’t remember any high profile actor in the movie. It might even have been dubbed from another language into English. Thanks in advance!