Lisa lies on a deserted road mourning the death of her daughter. A car comes driving, and in doubt she accepts the offer of a ride. But under a powerful emergency brake, she hits her head and faints, and when she wakes up, she finds herself in a strange network of narrow metal pipes. The only thing she is equipped with is a clock that counts down the time and warns her of the traps found in the tunnels.
A claustrophobic horror thriller in the style of the Cube and Saw movies.