How often do you see a show where you can pick up a complimentary condom along with your tickets?

The Civilians, an enterprising and experimental troupe that has won renown for quirky, documentary-style shows based on raw interviews conducted in the field, have previously tackled such topics as the evangelical movement, climate change and the redevelopment of Brooklyn’s Atlantic Yards.

They now look at the contemporary adult entertainment industry of California's San Fernando Valley in “Pretty Filthy,” a musical revue that treats the subject with humor, keen insight and affection. For the record, there is no nudity in “Pretty Filthy,” though the language is graphic.

Constructed as an upbeat 90-minute revue in which monologues alternate with pop-style songs by Michael Friedman (“Bloody Bloody Andrew Jackson”), the eight-person cast portrays various porn actors and those with behind-the-scenes roles like agent, producer, director and DVD distributor.

It’s similar to the well-known 1970s revue “Working,” which depicted blue-collar workers from all walks of life, except that “Pretty Filthy” is centered entirely around porn.

While there is no overall plot, it does explore a few characters over time, including an 18-year-old girl (Alyse Alan Louis) excitedly starting out in the field and a middle-aged veteran who was, as she puts it in one song, one of “The First Video Stars.”

In one strangely touching moment, a male performer (who goes by the professional name “Jimmy Wood”) is told by a police officer how his porn movies helped save his marriage.

Toward the end, everyone reflects a growing sense of anxiety that the industry’s business model is falling apart due to the Internet and that no one can make a living anymore.

Some parts are more interesting than others. One may even wish a more fully-fleshed narrative had been constructed. But all things considered, the Civilians’ rough and unique aesthetic is a refreshing alternative to standard forms of theater.

It’s worth noting that this production marks the 100th anniversary of the Abrons Arts Center, no doubt the finest theater on the Lower East Side. While getting there can be a challenge, the venue is certainly a downtown gem.

If you go: “Pretty Filthy” plays at the Abrons Arts Center through March 1. 466 Grand St., abronsartscenter.org.