Negative is set in the American southwest and follows Natalie, a former British spy who flees Los Angeles for Phoenix after a deal with a cartel goes wrong. She's joined by Hollis, a street photographer who has put his life at risk by taking Natalie's photo at the wrong time and in the wrong place.
In photography, a negative is an image, usually on a strip or sheet of transparent plastic film, in which the lightest areas of the photographed subject appear darkest and the darkest areas appear lightest. This reversed order occurs because the extremely light-sensitive chemicals a camera film must use to capture an image quickly enough for ordinary picture-taking are darkened, rather than bleached, by exposure to light and subsequent photographic processing.