For an oldie "sexploit" tittie flick, "The Curious Dr. Humpp" is some necessary viewing for die hards of the genre, though it's not something that is gonna rope ya in that much.
A mad scientist is trying to harvest sexual vitality in order to keep him alive. His henchmen kidnap dudes and hot chicks whom they coax into fornication...
Boobs! Boobs AND a creature is what you get here, folks! The women are nice looking and the creature has a terrible looking paper mache head. All the workings of a joyous 60's sex film, complete with lots of soft, lesbo lovin', though all "The Curious Dr. Humpp" really adds up to is a wannabe Russ Meyer flick that never builds into anything worth staying awake for. A lack of story is what gave this particular era's 'sexploitation' cinema a purpose in delivering meaningless girl-on-girl nipple tonguing and laughable scenarios contrived for the sole purpose of time killing, zero penetration sex. However, this just wasn't one of those movies that had me going, except for a few schlocky lines like "Let your libido sore!", which had me rolling!
Lovers of older sex films will love "Dr. Humpp", but there's better shit out there...