Two FBI agents attempt to clarify the murders occurring in a desolate region. They approach the witnesses of the latest incident with the help of the local police. All of them hide something and all have wildly different stories to tell.
Bob, a cab-driving serial killer who stalks his prey on the city streets alongside his reluctant protégé Tim, who must make a life or death choice between following in Bob's footsteps or breaking free from his captor.
Detective Michael Tabb knows the city he protects inside and out. He has felt its true heart, as much as its dark underbelly: but he does not know who, in both the dark and light - is taking the lives of young girls.
Everything changes when four Latina sisters living in different parts of the world receive a phone call from their youngest sister to come home for their dying mother, whose passing ends up bringing them back together.