The marriage of Lydia (Shannon Tweed) and Barry (John Laughlin) is falling apart. Desperate to make it work, Lydia plans a sexy weekend, but is foiled when a mysterious sex-crazed couple shows up at their doorstep claiming they're lost and asking for help. Soon, though, they reveal their carnal ways. Lydia's aghast at the turn of events, while Barry's turned on; later, Lydia learns that Barry had planned the whole thing all along.