A friend sent me the description below and I’m drawing a complete blank. Does anybody know what movie he could be talking about?

“I thought it was entitled ‘A.’ About devil worship and some rich family. And a doorway to hell. Made in the early to mid 70's. Nice, slick looking. Somewhat shocking as far as sexual content. Two brothers and a woman, some family occult worship. At the end, you find out that it was the younger brother who was smashed behind the door to hell when the demon burst out, so it wasn't the older successful brother who was the axis of evil.”

Memories are dim but might this have been Gene Roddenberry's SPECTRE?

It's definately not SPECTRE.

Richard, please accept my sincere apologies. I was thinking of something else.

It definately IS SPECTRE. Thanks!