During the Japanese invasion of the Philippines, an assorted group of refugees, including an American soldier, an Army nurse, a priest and a group of local children, try to make their getaway aboard a rattletrap, creaky bus.
Sardu, master of the Theatre of the Macabre, and his assistant Ralphus run a show in which, under the guise of 'magic', they torture and murder people in front of their audience. But what the punters see as a trick is actually real.