Two twin sisters were walking by the swamp when one of them decided to go for a dip as they walk by a bridge. A few minutes pass, and a rain suddenly starts to pickup...but the other sister didn't surfaced in a while. Seeing her bubbles pierce the surface, she decides to jump on the swamp's water.
The fog and murky water didn't allowed her to see or hear her sister, drowning right behind her...she also struggles to orientate herself in the swam, and before she know it, she blacks out in the water...joining her sister for a dive to the bottom of the swamp.