《Incubus-梦魇》是首部世界语恐怖片，拍摄于1965年，主演是著名演员威廉·夏特纳，电影摄影师是曾3次获奥斯卡奖的大师级人物Conrad Hall。该片的经历很诡异，1965年拍摄后因为一场火灾，胶片不知去向，直到30多年后才被发现，最终是在2001年上映。该片所有对白均为世界语。

After an asteroid draws an astronaut and his ship to its surface, he is miniaturized by the phantom planet's exotic atmosphere.

In the 1870s, two rival businessmen, Zack Thomas and Joe Jarrett, on a stagecoach heading to Galveston, Texas, must pull together to protect $100,000 from an outlaw named Matson. Once in Galveston, however, their rivalry continues, as Thomas joins up with Elya Carlson and Jarret with Maxine Richter. But Matson is still on the loose, and a scheming banker threatens both Thomas and Jarrett.

Simon is a modern day warlock. Though he lives in a storm drain and sometimes talks to trees, he's deadly serious about his witchcraft. After being picked up for vagrancy, Simon spends a night in jail with Turk, a young hustler with connections to powerful people such as Hercules, an aging hipster who hires Simon to work one of his groovy parties. There he meets Linda, the DA's pill-popping daughter. In between romanic dallances and colorful sex magic ceremonies, Simon must contend with those who dare to challenge his magical prowess causing him to summon the dark world for his revenge.