In an attempt to rescue their friend from an evil corporation, a group of teenagers end up releasing a horde of bloodthirsty zombies.
Routinely exploited by her wicked stepmother, the downtrodden Samantha Montgomery is excited about the prospect of meeting her Internet beau at the school's Halloween dance.
A student creates and sells a drug called 'Z' which has the unexpected side effect of resurrecting the dead as flesh-eating zombies, who proceed to wreak havoc at a Halloween rave.