The notorious Official Choi wants the precious heirloom of commoner Kim Sung-bo's family so he has the whole family killed and seizes the heirloom. Kim Sung-bo has become a spirit. On rainy days, he goes into the body of his friend Jung Il-do and tries to have his revenge on Official Choi. When Official Choi finds this out, he ignores his daughter Yeon-hwa's advice and kills Jung Il-do as well. However, another spirit appears. Official Choi gets the great Buddhist priest Hyung-bong to help him but it is too late. The three spirits have combined themselves and have become the 'three dark spirits'. Hyung-bong is unable to defeat the spirits and Official Choi receives their curse and dies.
High School student David Lightman (Matthew Broderick) has a talent for hacking. But while trying to hack into a computer system to play unreleased video games, he unwittingly taps into the Defense Department's war computer and initiates a confrontation of global proportions! Together with his girlfriend (Ally Sheedy) and a wizardly computer genius (John Wood), David must race against time to outwit his opponent.
The story of Karen Silkwood, a metallurgy worker at a plutonium processing plant who was purposefully contaminated, psychologically tortured and possibly murdered to prevent her from exposing blatant worker safety violations at the plant.