Psychiatrist Nancy Adler never thought she'd have a patient like Markus Johnson, a young black man who passes out randomly and has flashbacks of a past he can't remember and that contradicts the few things he knows about himself. Oh, and also, he's a porn star. Matters are further complicated by Gary Zimmerman, a retired detective who's now a private investigator, who snoops into Johnson's past. Reaching into the depths of a porn star's mind, "Smut Central" weaves a tale that's at once disgustingly tantalizing and frighteningly demented.