A group of middle-class Iranian people, former classmates at the law faculty of the university, go to the Caspian Sea for a three-day vacation: Sepideh, her husband Amir and their young daughter; Shohreh, her husband Peymān and their two children, including their son Arash and Nāzy and her husband Manuchehr. Sepidah, who planned the trip, brings along her daughter's kindergarten teacher, Elly, in order to introduce her to Ahmad, a divorced friend visiting from Germany.