Premise: Part horror movie, part medical detective story, ``Monsters Inside Me'' depicts what happens when people fall prey to an infection from a parasite, those nasty microscopic creatures found in water, soil and even in the air. Victims' stories are retold, including how doctors and scientists attempt to unravel each case before it's too late. Biologist Dan Riskin, assisted by doctors and other authorities who are familiar with each story, leads the scientific discussion about the parasites.
A 2-year-old swallows a horror during a family's vacation cruise; a mother of two houses a mysterious infection; lethal parasites hijack a 6-year-old boy's brain.
A painful rash engulfs a man's body; a woman feels a piercing pain in her throat; a teen girl falls victim to spells of dizziness and fatigue.