A luxury ship vacation went wrong when a hurricane caused the ship to wreck. Seven survivors - one man and six women - were tossed onto a small uninhabited island. To maintain order, they agreed the lone man could only have a relationship with one woman at a time, rotating through each day of the week. After some time alone on the island, a raft appeared with another beautiful young woman, disrupting the system and upsetting the man who had been looking forward to relaxing on Sundays.