The movie starts out in a small dusty village near a schoolyard. Children are playing around in the sun and it begins to thunder. The people begin to look around and comment that there aren’t any clouds. Eventually, there is a bright flash of lightning and a torrential downpour begins. These storms continue throughout the movie usually happening at night. After this, we see a native trying to run out of a water treatment plant and escape. Eventually, he is found by some of the other tribe members and killed by their sorcerer. This introduces the main character David, who is a lawyer and he gets their case. Throughout the movie, David seems to have a growing caution about water. The rains don’t bother David that much, but we first see him acting strangely when the bathtub floods and he hallucinates another time while in his car. He sees the outside world as being flooded and people outside are drowned and drifting around. Other events happen which he feels are strange, yet somehow connected to. At one point, he sees black rain fall from the sky and shortly thereafter, he talks with the tribal sorcerer and gives him some strange answers when the sorcerer asked him various questions. David continues to struggle to unravel the truth behind the case that he was given and it is lost because the tribe members are too secretive. One of those members then takes him to the water treatment plant the night after the case ends and leads him to an underground cave. There David sees a prophetic timeline on the wall and it eventually leads to a tidal wave coming ashore. He then remembers his heritage and that his grandfather was a tribal sorcerer. He then grabs several items from the cave including a mask, staff, and a headpiece for the staff. David flees the underground cavern, losing all the items in the process, and eventually comes out on the beach. The movie ends there with the last event on the timeline being fulfilled.