Somewhere on the streets of London an apparently motiveless killer is on the loose, his victims all bearing the hallmarks of some strange ritualistic death.

Rhys Davies, a Detective Inspector in the Metropolitan Police Serious Crime Directorate, is sent with his team to try and find what links the victims together. On the face of it, there is nothing obvious, and never any clues to the motive. The only leads he and his team have are the fingerprints the killer leaves behind and the hideous death the victims all suffer. Davies and his team struggle to put the pieces together in a desperate attempt to track the killer down before he can kill again.

Meanwhile, in a coffee shop on the corner, another killer lurks. Having escaped prison due to a technicality at his last trial, he waits, watching, planning, targeting his next victim…