Roxie Trent is a convicted felon forced to hunt invisible, electromagnetic ghosts on Mars. Kill enough ghosts and you're set free. But to kill them, Roxie and her fellow convicts must use the highly addictive drug Cinn, which allows them to see across multiple wavelengths. As the ghosts and the drug eradicate her comrades, Roxie must decide what she's willing to do in order to atone for her crimes-and she has no idea what the ghosts want, or how far her superiors are willing to push her to achieve Cinn's true purpose...
