‘Monsters Inside Me’ returns for a second series, revealing more terrifying stories of what happens when humans fall prey to deadly parasites. In some circumstances it can be a struggle between life and death as doctors race to cure these mysterious illnesses. Meet the teacher whose liver was slowly destroyed from within leaving medical experts perplexed. Also, a fire fighter becomes critically ill when his brain begins swelling uncontrollably leaving his family and friends shocked and worried. Each episode is a battle between modern medicine and evolution as patients fight off the monsters inside them.