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A pair of straight-laced sisters get a crash course in the art of "Having a Nice Day" in this erotic comedy for adults only. Ashleigh and Jennifer are two siblings who find themselves in a financial bind and decide to bring in a few extra dollars by renting out a room in their house. Their new roommate, Petal (Misty Mundae), turns out to be a fun-loving stoner who likes to smoke marijuana in the house, much to the consternation of the sisters. Eventually, Petal introduces Ashleigh and Jennifer to the joys of loco weed soon followed by the revealing of her bisexuality and bringing by her girlfriends for an evening of X-rated fun and games. That 70s Girl was one of the first titles from Seduction Cinema which did not feature a horror, fantasy, or science-fiction subtext or pay tribute to a sexploitation film of the past.