"A video on You Tube shot from a fishing vessel shows men in the sea brutally gunned down and the crew celebrating. Karsten von Hoesslin is a PI. His beat: the lawless oceans. Hunting the killers will take him around the world, to confront pirates, people traffickers and drug smugglers. But in Taiwan his investigation gets off to a rocky start. In Fiji he encounters a web of mystery. And Karsten begins to wonder where this case is heading."
The investigation has a major breakthrough when a second video of the killings is discovered.
In the Philippines, the investigation hots up as Karsten tracks down more witnesses and discovers that another ship was involved.
In Mombasa, Karsten reaches out to local contacts in a bid to unmask the identity of the man who commanded the shooter ship: Captain Hoodlum.
Will Karsten be able to identify the victims in the video? A cryptic clue leads him to Iran and a family with three missing sons.
Karsten makes one last push to obtain further evidence to present to the authorities, but well-placed informants advise him against digging any further. Will the authorities take him seriously?