A new killer is haunting London's streets . . .

A year after Jack the Ripper claimed his last victim, London is in the grip of a wave of terror. The newly formed Murder Squad of Scotland Yard battles in vain against the tide of horror.

When the body of a detective is found, his lips sewn together and his eyes sewn shut, it becomes clear that no one is safe from attack. Has the Ripper returned - or is a new killer at large?

And for Walter Day, the young policeman assigned the case, is time running out?