After a brush with a strange substance, an average fireman transforms into something far greater than himself — the Mercury Man. Endowed with fantastic superpowers, he will now use his abilities to help conquer the forces of evil.

Kiang has just been dumped by his girlfriend and is suicidal. He unsuccessfully tries several ways to kill himself. He bumps into a girl who hastily marries him and forces him to move in with her. She is obsessed in getting rich quick and now has a sinister plan on how to reach her goal.