A year ago, Zoe Jacobs disappeared without a trace. Her sister Emily can’t come to terms with the loss and won’t stop her own investigation. Emily’s emotional state has badly deteriorated, which worries her friends and colleagues. One day, after a minor surgery, she wakes up in a clinic and sees a doctor—unsuccessfully trying to revive a woman in the bed next to hers. But in the morning, everyone insists that the bed was empty and that what she saw was just a nightmare caused by anesthesia. Emily believes the doctors—until she finds tangible proof that the stranger existed. The woman is gone, and her fate is unknown. What is the staff of a prestigious private clinic hiding? And can Emily trust herself?