Tortured (2008)

Tortured begins by showing us a brutal torture in progress. Jimmy Vaughn (Cole Hauser) is a recent addition to a drug kingpin's family, and he has the task of slow and systematic torture of a member of his own crime family. Jimmy has been ordered by Big Boss Ziggy(whose face we are not shown throughout most of the movie) to find out what happened to the millions of dollars which have disappeared ,and it's believed that accountant Archie Green (Laurence Fishburne) knows where the money is. As the graphic torture unfolds, Jimmy begins to remember, through flashbacks, his own initiation into the group. He struggles with his memories, both of his hidden real life, and of what he's had to do in order to get into the crime family. It's revealed that Jimmy is actually an undercover FBI agent, and has infiltrated the group in an attempt to identify and bust Ziggy. Several wild twist occur along the course of the movie, and the ending, and the real identity of Ziggy, is the biggest shock of all.