professor alan whitmore have be send to hungary to collaborate with a professor there on some special project involve an ancient cult and or some such thing . while there he find the professor have have a nervous breakdown and say strange thing . before he know it and whitmore have be suck into the vortex of odd thing happen and and there be mysterious disappearance take place at this strange hotel in which he be stay . further investigation reveal the ancient cult and know a the weaver and to have some kind of spider thing go on and and that there be cult member everywhere and which be evidence by the odd tattoo they all have . the mystery be well shroud throughout the film and not reveal until fairly late in the film and although there plenty of strange going on to keep your interest until then . budpest make a great place to make a horror film and with deserted street that be creepy even in broad daylight . when the mystery be finally reveal there be some stop motion special effect that seem a tad hokey but that only a minor complaint . there be a feeling of dread throughout the film that be well maintain and and that a big plus . strange this be so obscure and because it well worth see and fit well into the italian horror niche of the 80 . worth see if you can dig up a copy somewhere . positive .