Two young boys wander into the woods after school on their way home. Deep into the heart of the woods they discover a strange tunnel that piques their curiosity and the boys abandon their backpacks behind, heading into the tunnel. They never return.
The local townspeople begin to search for the missing boys and soon discover their backpacks outside of the tunnel entrance. A rescue team sends a firefighter into the tunnel, a rope tied around his waist for safety. The rope moves and moves and then… stops, and the firefighter does not return. News of the strange tunnel spreads like wildfire and the government takes over researching it. However, people quickly learn that nobody that goes in ever comes out. The tunnel is soon given the nickname “The Suicide Tunnel”.
A few years later, four high-school students who are completely different from one another come together due to their interest in the tunnel and because of their lack of will to keep living their lives. The four soon-to-be friends decide that, together, they will take the ultimate risk and enter the Suicide Tunnel, but what they find is nothing like what they ever could have imagined.