A group of eight former American high school students gather for a reunion at their closed-down school. Unbeknownst to them, the classmate they tormented and negatively impacted is present, seeking retribution with deadly consequences. The rundown school setting in “Slaughter High” (1986) brings to mind "Death Tunnel" (2005), but this earlier film doesn't measure up; it’s noticeably less polished and visually appe…