I remember a horror movie from the early 70s (I think). I saw it on TV but it was definitely a movie – not a TV movie. It was in color.

Story was (3) girls win a contest to go on vacation in a nice chalet. The girls get there and a nice couple pamper, spoil them and feed them. After the first night one of the girls goes missing and the family tells the remaining girls that the girl just went home but it becomes apparent later that the family are cannibals and are eating the girls.

I remember one of the girls was black and I think she got eaten first. Only one girls survives. And I think the girls may have been college students.

Not sure if it was American or foreign but it had that 70’s Italian Horror vibe to it.