Nick Stryker was one of Los Angeles's most infamous private investigators. He made a living snapping photos of philandering spouses - and supplemented that income by blackmailing them in return for not turning the evidence over to his clients. But Nick made one too many enemies over the years...

Dr. Mark Sloan receives a package of files, audiotapes, and videos - and a cryptic letter from Stryker that begins, "If you are reading this, I'm dead." The box contains the most incriminating evidence Stryker gathered from those involved in activities a lot more scandalous than simple infidelities. Now, with enough proof to put some of the most powerful people in Los Angeles behind bars, Mark must determine which of them resorted to murder...