Urban Legend recounts the chilling story of Mayhem Mansion, a dark twisted estate whose strange family of occupants threw wild and lavish parties for their equally strange friends. At one such party, in a final toast, the hosts poisoned all of their guests, eternally trapping their souls in the mansion.

On Halloween night, the legend turns to curse when the spirits of the party-goers rise in search of mortal souls to possess so that their party may continue...