Following the death of her daughter, ex-DEA Special Agent Miranda Hastings moves to New York in search of a new start at the NYPD, where she is paired up with Ryan McDowell, the man whose heart she broke years ago.

Ryan gets suspicious of the woman he was once deeply in love with, realizing she's not the same person he knew and begins his own investigation only to find out what she's hidden is a lot deeper and more painful than he ever imagined.

Ryan and Miranda become embroiled in a dangerous investigation. More people she loves are being hurt, and her own life is in danger.

Though Miranda is still stuck in her painful past, unable to move on, will Ryan be able to convince her that life is worth a try? Can he save her from herself as well as her demons? And what happens when her past comes back to haunt her? Will she give in to the unforgiving blackness surrounding her? Or will she find the strength to fight one last, decisive battle?