When Carol Coronado killed her three young daughters on May 20, 2014, no one could believe it. Everyone who knew Carol swore she was a model mom - loving, attentive and engaged. Sophia (2 1/2), Yazmine (1 1/2) and Xenia (6 weeks) were Carol’s pride & joy, her greatest treasures. So when her husband Rudy and her mom Julie found her hovering above the dead bodies of her three little girls, their horror collided with a realization that the person in front of them with the knife in her hand was not the person they knew. She was not Carol. Like hundreds of other mothers who kill their children or themselves each year, Carol Coronado was suffering from postpartum psychosis at the time of her crime. Yet no one was able to spot it, so no one was able to stop it. NOT CAROL takes a deep dive into the taboo world of maternal mental health, blowing the lid off of a national epidemic that is ravaging families at a shocking rate. Over 800,000 new mothers suffer from postpartum depression every year. And out of every thousand births, one to two moms will suffer a psychotic break. Of those, 4% will kill their child, and 5% will kill themselves. NOT CAROL looks at this unreported epidemic through the prism of the Carol Coronado murder case.