A ferry leaves Dublin...The chief engineer lies dead on the car deck ...There's a killer on board...Inspector Drake is called from a seminar on cyber crime to meet the ferry docking at the port of Holyhead. Frank Rosen the chief engineer lies on the car deck a knife through his heart. For the first time Drake knows where the killer is but he doesn't know who.When Rosen's house is ransacked the night after he's killed Drake knows the killer was looking...