Following the 1979 Islamic Revolution, Iran's secular world all but disappeared from view. Today, much remains forbidden, especially for women: They are not permitted to socialize with men in public or reveal too much hair from under the headscarves they are required to wear. Security forces troll the streets to enforce these restrictive laws.
But behind closed doors, a more permissive world thrives. Young Iranians, including women, engage in the taboo: smoking, dancing, drinking, mingling with the opposite sex. There are no bars in Iran, so young people often meet at coffee shops, like the one pictured above. Proprietors post signs saying they're not permitted to serve hookahs to women, but some do it anyway.
Iranian photographer Hossein Fatemi, now based in Chicago, spent years in his native country capturing these hidden lives.