Alex Ryder is the best detective in her division, but she's harboring a secret that could kill her entire career. When Detective Alex Ryder picks up a new homicide case, no one knows her secret connection to the murder. As personal issues and an obsessive nature threaten her career, Alex follows a lead onto the Emerald Adventure, a cruise ship heading to the Bahamas for five days. But the killer's on board, and it's only a matter of time before someone else dies.