詹妮（David Gittler 饰）的迟迟未归让母亲莱恩（琳恩•卡林 Lynn Carlin 饰）和父亲拉里（巴克•亨利 Buck Henry 饰）感到十分心急。拉里和好友托尼（Tony Harvey 饰）决定外出寻找，莱恩则留在家里等候消息。终于，詹妮回来了。愤怒的…

　　A reclusive programmer, his sister and her new boyfriend are held hostage by a rapidly evolving computer virus.