Whitechapel, 1888: London is bowed under Jack the Ripper’s reign of terror.

London 2015: actress Julianne Bell is abducted in a case similar to the terrible Tower Hamlets murders of some 10 years earlier which hark back to the Ripper killings of a century before.

Falkenberg, Sweden, 2015: a woman’s body is found mutilated in a forest, her wounds identical to those of the Tower Hamlets victims. With the man arrested for the Tower Hamlets crimes already locked up, do the new killings mean he has a dangerous accomplice, or is a copycat serial killer on the loose?

Profiler Emily Roy and true-crime writer Alexis Castells again find themselves drawn into an intriguing case, with personal links that turn their world upside down.