Help! Can't Remember a Movie About Two Men Battling Demons in Mexico, and my Husband Thinks I watched it w/ Another Man!!

by Mellissa
(Wasilla, Alaska)

I only remember bits & pieces of a horror movie, and now I'm searching for the title.

The film starred two guys, one blonde & one with brown hair. They were traveling together in Mexico (I think) and made friends with a local cantina owner & his young daughter, she was maybe 11 yrs old. They were told about the castle etc. etc., and against their best judgement they entered the castle one night. I remember something about some demons that were only being able to come out at night and only one day of the year. I also remember the travelers hiding out in the streets at night, as the evil henchmen roamed the streets. I believe the movie had either vampires or Satan himself.

Both of the guys entered his castle and I think one of them took something from it, not sure but I remember in the end, only one traveler remained and the other, the blonde guy, was captured by the ghouls inside the castle and the one who escaped now worked in the cantina.

One of the final scenes has the captured friend telling his friend he would see him in a year. He was now overcome with evil.

Can anyone help me out?