Married couple Sarah (Jaime King) and Jason (Terry Chen), and son Sammy (Regan Oey), travel to Vancouver for the funeral of Uncle Raymond (Foo). During this time, Sammy begins to see ghosts and falls gravely ill, his illness coinciding with the Chinese festival of Ghost Month. After traditional western medicine fails to help Sammy, Sarah turns to a mysterious pharmacist who tells her that her son is held in a death grip by a living corpse. Sarah now must find what the spirits want before the last day of Ghost Month, or Sammy will be lost forever.