Nicole P. is an Irish graduate student pursuing a doctorate in literary theory in New York. She checks herself into the Palmer Institute (a posh upstate mental hospital), seeking help with anxiety and disorientation triggered by a recent breakup and her quest for a dissertation topic. But by the time she’s discharged two weeks later, her life has become dangerously entangled with those of her psychiatrist, who has fallen in love with her, and two schizophrenic patients, Hunter and Antonia Morgan, 21-year-old twins whose mother, Maria Morgan, committed suicide seven years earlier. Maria Morgan’s suicide has cast a spell over the Institute, enmeshing everyone there in a world of deception, delusion, and death. Prompted by a blackmailer named Dubin, Nicole realizes that she must untangle the mystery of that suicide and its consequences in order to keep from losing her mind.