After two brothers, Steve and Duke Martin, rob a bank in a small Florida town, they drive to a supermarket parking lot where they plan to transfer to a getaway car. When Steve cannot start the second car, they hijack, at gunpoint, the car of a young female shopper, Dorothy Courtney, and force her to accompany them to a marina from which they intend to flee to Cuba. Rodriquez, the brothers’ contact at the marina, warns them that the police are there and consequently, they should delay their departure. In need of a place to spend a few hours, Duke looks through Dorothy’s purse and discovers that she is a member of the Hibiscus Country Club, on the coast near the marina, and decides they can hide out there. When a terrified Dorothy explains that only married couples are admitted to the club, Duke tells her that Steve will pose as her husband and that he will hide in the trunk of the car until they are inside. Upon arriving at Dorothy’s cottage, Duke looks out a window and realizes that they are in a nudist camp. Some of Dorothy’s friends want to meet her new husband so she and Steve go to meet them in the nude, while Duke phones Rodriquez to tell him where to pick them up. Steve begins to enjoy the nudist experience and he and Dorothy realize that they were immediately attracted to each other and are falling in love. Dorothy tries to persuade Steve, who was an unwilling partner in the robbery, to remain at the camp and let Duke leave with the cash. Later, at the cottage, after Steve and Duke argue, Duke grabs Dorothy and, when Steve tries to free her, draws his gun on his brother. At that moment they hear the siren of Rodriquez’ boat and rush outside only to see him speed away, due to a police patrol boat in the vicinity. In desperation, the brothers drive away from the camp and, when a police car begins to follow them, turn up a side road. Steve decides that he has had enough and wants to leave, but Duke knocks him out, then climbs over a nearby wall into a serpentarium that houses deadly reptiles. When the police follow, Duke hides in an apparently empty pit, but is bitten by a giant cobra and dies. After Steve regains consciousness, he turns on the car radio and learns that Duke has died and that although all of the cash has been recovered, the police are still looking for Duke’s accomplice. Steve then phones the police and tells them that he will turn himself in at the country club. There, Steve tells Dorothy that he is about to be arrested and probably jailed, then asks her to wait for his release. She tells him that she will wait for him forever.