During the heavy rains, the Kim family’s half-basement apartment floods. This flooding causes the sewers to back up, which in turn sends human effluent spraying out of the turlet. This, quite literally, is a shitty movie detail.
Furthermore, as the eponymous title suggests, there was at least one parasite in said sewage.
Damnable Humbuggery 
Buttons are back! 😎🕵️♂️
Yikers. That don’t look like fun. Our bathroom’s looking pretty sweet by comparison (blows knuckles rubs on shirt ;)).
Parasites, viruses… all very timely, Aeryk. :))
LikeLiked by 1 person
Ha! It was completely by chance (the timing).
LikeLiked by 1 person