River Monsters (2009)

S07E02 Mekong Mutilator

Title: Mekong Mutilator Plot: A chilling account emerges from Southeast Asia, detailing a bizarre incident where an unknown entity in the water has severed a young man's testicle. This unsettling news draws freshwater investigator Jeremy Wade to the banks of the Mekong, a river infamous for its legendary and terrifying fish.