Every episode of Monsters Inside Me Season 9 ranked from best to worst. Discover the Best Episodes of Monsters Inside Me Season 9!

Part horror movie, part medical detective story, find out 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 experts who witnessed each case, leads the scientific discussion about each parasite.

The Best Episodes of Monsters Inside Me Season 9

Seasons9

Season 9 Ratings Summary

The Best Episodes of Monsters Inside Me Season 9

Seasons9

Episode Rankings

Season 9 Ratings Summary