Owners of a camping-car, Aline, Sophie, Phil and Tony go on holidays, accompanied by Shirley, a hot British met the day before by Tony. Real sex addict, this one jumps over all the pussies that goes around. He takes advantages of this meeting to have sex with her in front of everybody and to film their exploits much to the annoyance of Sophie who expected being his only partner. Breakdown in the middle of the forest, Phil and Tony are looking for help with the host of a welcoming house where live four young beauties. In order to excite the boys, they organise a delirious lesbian orgy before offering their body to the aroused males. But which worrying mystery is hiding behind apparent erotic craziness? And which revenge Aline and Sophie are concocting against their inconstant friends?