Jessica Fellmer's peaceful life ends abruptly when one afternoon, her badly injured brother stumbles into her apartment and dies in her arms. She is shocked to discover that Chris was a collaborator on a secret government project and a time traveler in 1888 London. With the help of his partner, she travels back in time to learn more about the circumstances surrounding his death. But, as the young woman struggles to navigate Victorian-era London, she realizes that knowing what's to come isn't always an advantage.
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And then, in addition to the dangers to her body, there is also a danger to her heart lurking in the dark, foggy alleys. But who can Jessica trust?
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Hissing gas lanterns, swirling fog, mysterious shadows, and a woman whose knowledge of the future can be fatal to her.