In June 2007, WWE Superstar Chris Benoit no-showed a WWE pay-per-view. Over the course of three days, he murdered his wife and his son, and then took his own life. Since then, this case has captivated wrestling fans and true crime enjoyers alike. And despite this case being well-known, some of the details revealed in this documentary have never been brought to light until now. Dr. Christopher Nowinski, founder of the Concussion & CTE Foundation and former WWE Superstar, gives us his perspective on what happened and what he learned when he examined Chris Benoit's brain.