The victims are all middle-aged and the police are initially baffled, until a tenuous link suggests the victims were involved in a rape/murder trial fifteen years previously. Ross and his team of detectives soon realize that the killer has a 'murder list' and that unless he or she can be stopped, the city's streets will soon be awash with the blood of the innocents.
The Mersey Ferry Murders is a tale of rage, revenge and retribution, as Ross's team race against time to prevent the killer from carrying out a plan of heinous proportions.