Plot

Various couples go to a holiday camp designed to help out with their sexual problems.

Kathy is not attracted to her husband John anymore, and Linda can't get horny for her husband Neil, who happens to work as a women's lingerie salesman. Psychologist Dr. William sends Linda and Neil to Dr. Jim Matlock, a sexologist who runs a quaint forest ranch that serves a safe place for impotent and frigid couples to spend their weekend hideaways and give in to any sexual desires they have. John and Kathy join them there as well as Stephen and Maria, another couple that's dealing with frigidity. Jim's gorgeous platinum blond neighbor Heidi seduces Neil. Jim spikes Stephen and Maria's drinks for a threesome. Meanwhile, in the nearby carpenter shop Skip, the owner, and his tomboy assistant Arlene have a fight after Skip once again hits on Arlene and she once again angrily refuses his advances. She leaves in anger, runs into Kathy and immediately seduces her. John, who went bird watching, catches them in the act which makes him so horny he starts giving himself a blow job. Linda sees this and helps out John. He eventually his way with Arlene to have his revenge on Kathy. In the process, Arlene discovers something about herself - that she's actually straight. Jim and his buxom assistant Cindy teach Kathy about sex.

Kathy is not attracted to her husband John anymore, and Linda can't get horny for her yuppie husband Neil, who happens to work as a women's lingerie salesman. Psychologist Dr. William sends Linda and Neil to Dr. Jim Matlock, a sexologist who runs a quaint forest ranch that serves as a safe place for impotent and frigid couples to spend their weekend hideaways and give in to any sexual desires they have. John and Kathy join them there as well as Stephen and Maria, another couple that's dealing with frigidity. While jogging, Jim's gorgeous platinum blond neighbor Heidi meets unhappy Neil and seduces him. Jim spikes Stephen and Maria's drinks to make them more horny, so both him and Stephen has sex together with the now extremely horny Maria. Meanwhile, in the nearby carpenter shop Skip, the owner, and his tomboy assistant Arlene have a fight after Skip once again hits on Arlene and she once again angrily refuses his advances. She leaves in anger, runs into Kathy and immediately seduces her. However, John, who went bird watching, catches them in the act with his binoculars. This makes him so horny he literally starts giving himself a blow job in a hanging chair while continuing to peep on them as the girls take on a huge double-sided dildo. Linda sees what John is doing and becomes so horny that she takes over orally for him, only to suddenly leave him unsatisfied out of guilty conscious for cheating on Neil. In frustration, John then rushes into the room and has his way with Arlene right in front of Kathy to have his revenge on his wife. Arlene discovers that she loves straight sex and enjoys being treated like sex object. In fact, this experience makes her so sex-starved that she later tries to seduce Skip herself, but he, ironically, turns out to be impotent. Finally, Jim and his buxom assistant Cindy help Kathy learn how to give blowjob and they have a threesome. All this somehow fixes things as the couples happily get together again, that is except for Skip and Arlene whose subplot has no resolution.