A paraplegic computer engineer starts to hear noises and the voices of bank robbers in his basement. Discreetly inserting a camera and microphone into the wall, he discovers that criminals are digging a tunnel to rob a nearby bank.

A paraplegic computer engineer starts to hear noises and the voices of bank robbers in his basement. Discreetly inserting a camera and microphone into the wall, he discovers that criminals are digging a tunnel to rob a nearby bank.