Body Jumper - 2001 - 4/10
AKA - Pop Weed Sayong // ปอบ หวีด สยอง

Thai masterpiece.
Busload of students teach impoverished natives exercise to improve their wretched lives.
Malcontent wino heckles them that their village beyond help, it is cursed.
Late night, the hottest girl from the bus bathes in the haunted lake and is swiftly possessed by liver eating ghost.
Two heartbeats later, students back in Bangkok, and the once-shy girl now has an appetite for boyfriends.
Guys who soon turn jaundice yellow and die of liver failure.
More comedy than horror, comedy also silly and juvenile, though plot points are inventive.
Of course she is harvesting livers. Their backs is to her, briefs down, shortest route = the back entrance.
Add a gushy transgender, an out of place dance party, chases through ventilator ducts, a flying shaman with umbrella and magic condoms, and you have non-demanding craziness.