There's a killer in the slums.

London 1884. When a thief robs Fleet Street reporter Penny Green, she finds herself caught up in a horrifying murder.

Someone is terrorizing the residents of St Giles Rookery and Scotland Yard sends Inspector James Blakely to investigate. When the serial killer claims a victim outside the slums, Victorian London is sent into panic.

Can Penny's friendship with the people of St Giles uncover the culprit? She and James must overcome their complicated relationship to work together, but each new murder threatens to derail their work for good.