Shot in USA with American actors, Witchery is actually four and final installation of a weird Italian Casa series. La Casa and La Casa 2 are actually the original American The Evil Dead movies, while La Casa 3: Ghosthouse is an Italian movie disguised as a sequel but otherwise completely unrelated.
La Casa 4 is also completely unrelated to any of the previous movies. Most of the budget seems to have gone towards the exotic location as the movie itself is really tame, consisting mostly of a mixed group of visitants wandering around an old house and having encounters with an old lady doing all sorts of witchery.
The movie gets very low mileage out the the location as well as its cast starring David Hasselhoff and Linda Blair, both of which could’ve been replaced by any other lesser known actor without any noticeable impact.