On the streets of Minneapolis, Sarah has worked everything from vice to missing persons. But six months after the death of a small-time criminal in rural Minnesota, Sarah is still protecting the identity of a killer. And now, a zealous D.A.'s investigator has come to town, determined to make an arrest. Surrounded by colleagues who know her to be a murder suspect, Sarah keeps her demons at bay by involving herself in the troubles of strangers. However, as she crosses one ethical line after another, Sarah increasingly fears that a mis-step on her part will end not only in her disgrace, but in the death of one of those she has promised herself she will protect.