With her career on the line following a botched murder investigation, Detective Laura Foster is assigned to investigate the deaths of several homeless people who were living on the streets of London. A murderer is on the loose, killing people seemingly at random. Just when she thinks she might never break the case, however, Laura meets an enigmatic young homeless girl who might just have some of the answers in her notebook. Ophelia refuses to give any information about her past, and won't even reveal her real name. However, she offers to help guide Laura through the labyrinthine world of London's homeless community, as they search for a killer who has nothing left to lose.

"We're the same. And people like us, we always fall in the end." When a dead body is found in a very public part of London, Detective Laura Foster finds herself tackling a murder investigation that pushes her to the brink - especially when the body turns out to be a patchwork figure made up of several different victims. A very theatrical serial killer is on the loose, and Laura soons realizes that there's a connection to the local art school. Just as the investigation is shifting into gear, however, Laura faces another Ophelia is back, one year after she disappeared. Initially concerned about someone who seems to be tracking her, Ophelia soon throws herself into the task of helping Laura. But when she comes face to face with the killer, Ophelia realizes that simply turning her into the police might not be an option.