**_Castle-in-the-woods of Italy_** Several youths partake in a Rock TV-sponsored competition at a castle north of Rome to win $1 million, but the lord of the castle has diabolic plans (Adam Ant). "Spellcaster" (1988) is castle-oriented horror in the tradition of “The Devil’s Nightmare” (1971), but mixed with the 80’s vibe of “Doom Asylum” (1987) and the cartoonish effects of “Necromancer” (1988). It’s cut from the same cloth as soon-to-come flicks "Howling V: The Rebirth" (1989) and "Subspecies" (1991), but it’s the least of all of these. Although the 80’s ambiance is good and there’s some…