Name That Trauma:: Reader Dee Emm Elms on a One Word Demon Destiny

Here's hoping you can assist me with a Kindertrauma by proxy –

A friend of mine tells me of a movie she saw when she was younger, which would place it around mid-80s or perhaps a little later.

Details are vague, but here's what she knows:

There's a girl who keeps having visions of a demon surrounded by fire. She goes somewhere – an island? a cave? – because it's her "destiny" to confront this demon.

My friend thinks that the title is one of those totally generic 80s one-word horror movie names like DESTRUCTIONATOR or KILLMONSTRINATOR or DEVILATOR or something to that effect.