The Laughing Dead (1990)
Zombies, demons, and a mad doctor await a bus-load of folks looking for a tour of Aztec ruins. Father O'Sullivan is a Catholic priest who has lost his faith in God and who cannot forget the nun with whom he once had an affair (and a son). O'Sullivan serves as tour guide for archaeological student Cal, New Agers Wilbur and Clarisse Lemming, runaway Laurie, and tourists Dozois and Frost on a bus trip to Mexico. No one is more surprised than O'Sullivan when his love, Tessie, also boards the bus with her bratty son Ivan. In Mexico, Cal reveals his knowledge of a crucial ancient text, just in time for the Day of the Dead festivities. Meanwhile, evil Dr. Um-tzec is planning an apotheosis for himself that will culminate in his incarnation as the Death God, and what he needs to accomplish this is the hearts of sacrificial children ... lots and lots of hearts. While Father O'Sullivan grapples with the emotions of seeing Tessie again, he is approached by Dr. Um-tzec to perform an exorcism; but Um-tzec has deceived him and O'Sullivan is thereafter occasionally possessed by the Death God. Fighting the possession, O'Sullivan tries to rescue Ivan, who is regarded as a perfect sacrificial victim. Now Tessie, Cal, Laurie, and the bickering Lemmings must pull together to stop Dr. Um-tzec and O'Sullivan from completing the apotheosis ritual.
- Father O'Sullivan is a Catholic priest who has lost his faith. He can't forget the nun with whom he once had an affair (and a son). He serves as a guide for American tourists who are innocently looking for a tour of Aztec ruins. O'Sullivan meets archaeological student Cal, who turns out to be the brains of the bunch. New Agers Wilbur and Clarisse Lemming are silly but earnest. Runaway Laurie is trouble, and prone to gossip. Tourists Dozois and Frost want to have fun in Mexico. O'Sullivan is astonished when his love, Tessie, also boards the bus with her (their) bratty son, Ivan. The tourists find fantasy and evil in Mexico. Is it black magic? An evil doctor plans an apotheosis for himself: one that will culminate in his incarnation as the Death God. What he needs is the hearts of sacrificial children.