When was the last time you felt truly shocked by the content of a show? You know, truly and genuinely shook up by the action. Think of Medea slaying her children, Lear carrying Cordelia in his arms or any moment from "Assassins." But there might not be a more frustrating experience at the theater than watching a show that is designed solely to shock you.

Meet "Scarcity," one of no less than three Off-Broadway dramas opening this week that explore American domestic life, joining "The Dining Room" and "100 Saints You Should Know." But whereas "The Dining Room" is about the upper class and "100 Saints" is about the middle class, "Scarcity" takes on the lower class of rural America.

And while "Dining Room" and "100 Saints" are intelligent scene studies, "Scarcity" indulges in far too much profanity to be effective. It is a particularly bad form of kitchen-sink realism drama. For instead of focusing on character, "Scarcity" moves far further into melodrama and mediocrity.

The characters of Lucy Thurber's "Scarcity," all seemingly stereotypical, include the exhausted mom who works at the local supermarket (played by Kristin Johnson of "Third Rock from the Sun"); the deadbeat, alcoholic father; the clairvoyant little girl; the mathematically gifted 16-year-old boy; and the goodie-two-shoes teacher.

Thurber attempts to separate "Scarcity" by blatantly shocking us: the little girl has the worst potty-mouth in the world, the father is clearly attracted to his 11-year-old daughter, the teacher is clearly attracted to her teenage student, and mom and dad are prone to having sex in front of the kids.

But is "Scarcity" actually scary? Hardly. Cheap is a better word. Just as the show's 16-year-old makes a goal of leaving his family and going to a fancy prep school, you, too, should stay far away from the typically terrific Atlantic Theater Company so long as "Scarcity" is playing.

Atlantic Theater Company, 336 West 20th St, 212-279-4200, $55. Tues-Fri 8pm, Sat 2 & 8pm, Sun 3pm. Thru Oct 14.

Kristen Johnston and Maggie Kiley in Lucy Thurber's new play, 'Scarcity.' (ARI MINTZ, Newsday Staff / August 28, 2007)	Kristen Johnston and Jesse Eisenberg in Lucy Thurber's new play, 'Scarcity.' (ARI MINTZ, Newsday Staff / August 28, 2007)
Kristen Johnston, Meredith Brandt and Jesse Eisenberg in Lucy Thurber's new play, 'Scarcity.' (ARI MINTZ, Newsday Staff / August 28, 2007)	Mirian Shor, Michael T. Weiss, and Kristen Johnston in Lucy Thurber's new play, 'Scarcity.' (ARI MINTZ, Newsday Staff / August 28, 2007)