At Franklin Children’s Hospital, an inexplicable series of bizarre diseases is reaching terrifying proportions. Pediatrician Annick Clement soon finds herself caring for this growing number of profoundly ill and vexing patients.

After a meticulous and painstaking review, Annick comes to the chilling revelation that these illnesses have not occurred by pure happenstance—they are the work of a cunning bioterrorist with an unfathomable purpose to his morally corrupt behavior. He works in Annick’s own shadow and soon becomes diabolically obsessed with her death. For Annick, stopping him means laying her own life on the line. As she sets out to do so, every passing hour soon becomes critical as a time bomb of impending disaster ticks on relentlessly.