A gargoyle guardian and a Knight of Malta unite to seek justice when Dublin's St. Patrick's Cathedral is vandalized in this delightful modern-day fantasy.   The gargoyles of Dublin, Ireland, have a sacred duty to perform. Formerly God's avenging angels, for centuries they have been entrusted with guarding the churches and cathedrals of the Irish capital while avoiding all contact with human beings. But once a month these loyal stone sentries must...