Alice, a successful thriller writer, is in the middle of a promotional tour when a more insistent journalist tells her the shameful secret of her success. Scared, she tries to escape… and falls from a balcony. When she comes back to consciousness, she finds herself in London at the turn of the XIXth century, and has taken the place of Kyrilla, the heroine of her first novel. She soon remembers the plot. A serial killer is terrorizing the city, and Kyrilla should be his next victim…