On February 4, 1997, 18-year-old Louise Woodward made a frantic call to 911. She was a British nanny living and working for Eappen family in Newton, Massachusetts, an affluent suburb of Boston, and the 2-year-old she had been caring for had become unresponsive and was barely conscious. Tragically, baby Matthew died a few days later. Louise would charged with his murder and accused of shaking him to death in a fit of frustration. But did she do it? And if not, what really happened to baby Matthew Eappen?