Saw on late night about 1974, b-movie type, probably from 60s or 70s. Guy and girl are holding a female alien, who looks like an earth female. They torture her for information by twisting a rope around her wrists through the footboard of the bed. She may have been wearing the ususal silver jumpsuit… TY and good luck.
“UFO”(1970-1973 TV series)?
This series had alien women in silver jumpsuits and was being aired in the time period you mentioned, could this be an episode of this series?
UFO
http://imdb.com/rg/an_share/title/title/tt0063962/
I will have to see if I can find them somewhere, then report back to you. You may well be right. TY.