After her mother's death, penniless May Kimble lives a lonely life until an aunt she didn't know existed summons her to San Francisco. There she's welcomed into the wealthy Sullivan family and their social circle. Initially overwhelmed by the opulence of her new life, May soon senses that dark mysteries lurk in the shadows of the Sullivan mansion. Her glamorous cousin often disappears in the night. Her aunt wanders about in a laudanum fog. And a maid keeps hinting that May is in danger. Trapped by betrayal, madness, and murder, May stands to lose everything, including her freedom, at the hands of those she trusts most. Then, on an early April morning, San Francisco comes tumbling down. Out of the smoldering ruins, May embarks on a harrowing road to reclaim what is hers.