|Fourth and last (if you don't count Cross of the Devil) of the Spanish Blind Dead series.
This has a young doctor and his wife moving to a seaside village where the Templar Knights are terrorizing the community by demanding female sacrifices.
Seems that every seven years, the undead Knights emerge from their watery graves in the sea for a week-long festival where they feast on the blood of beautiful virgin girls.
And woe be to the village if they don't offer up the goods!
It's all nicely atmospheric, but a bit repetitive at this point. This still wrings some benefit from the creepy, slowmoving Templar knights and that always effective chanting score.
Also known as Night of the Seagulls.
Spanish: La Noche de los Gaviotas.