Undeservedly obscure atmospheric coastal horror

Two couples in their 30s take a vacation to a secluded isle off the coast when a storm hits and people mysteriously start dying one-by-one. Kay, a troubled artist (Sarah Kendall), says she sees everything in her nightmares before it happens.

I suppose “The Slayer” (1982), aka "Nightmare Island," could be classified as a slasher flick, but it’s more accurately a mystery-horror with haunting remote island ambiance, sort of like “The Shuttered Room” (1967), but mixed with elements of moody coastal horror, such as “The Fog” (1980). “I Stil... read the rest.