During the orientation of a university, seniors manage a trip to a forest for first year students. But when they arrive at the checkpoint in the front of the forest, an officer do not allow them to enter because of the danger that may happen.
Note, one of the seniors, insist to enter the forest. Unexpectedly, a stranger named Mork come to the group and asks for the ride to enter the forest. He claim that he knows the shortcut and is willing to guide the way.
On the way, Om, one of the seniors, see a spirit shrine and tell everyone to get off the bus and show respect. But Note think that it is a waste of time and tell the driver to go on. After that, the group come to an old wooden bridge. Note tell the driver to cross the bridge although his friends warn that it may collapse. At the middle of the bridge, the accident happens: the bridge break down and the whole bus drown into the river. The driver and some of the students die here.
Mai, Pat, Ploy, Peemai, Toey, Mew, Obor, Tan, Pok, Kenta, Air, Note, Pai, John, Bomb and Om are the survivers. They walk through the forest and find a deserted town. At this mysterious place, horror things happen. The students are killed cruelly one by one. Nobody knows who did all this, ghosts or murderers.