What could be causing people to jump into a river in a strange epidemic of drownings? Jae Hyuk (Kim Myung Min) has a Ph.D. in biochemistry and is a former professor who is now working as a pharmaceutical sales rep after losing his life savings in bad stock investments arranged by his brother, police detective Jae Pil (Kim Dong Wan). Jae Hyuk is caught up in a wave of fear that grips the country after a series of dead bodies are found floating in the Han River. The deaths are caused by an outbreak of virus-infected mutant parasitic horsehair worms known as “yeongasi.” Once the worms infect the human brain, people start to develop excessive hunger that turn to excessive thirst when the worms are mature and ready to reproduce. As a result, those at the end-stage of infection jump into the river to allow the worms to escape their bodies to quench their thirst. When Jae Hyuk believes members of his own family are exhibiting symptoms of the infection, can he or Jae Pil do anything to save them? “Deranged” is a 2012 South Korean film directed by Park Jung Woo.