There’s something strangely compelling about “Sweaty Betty,” a quasi-documentary about black street life in Prince George’s County, Md.

Rambling and diffuse, “Sweaty Betty” (which is subtitled to make the slangy dialogue easier to understand) is a mostly event-free hangout with Rico and Scooby, two young men looking for something to do on an ordinary day, and Floyd, a guy who has secured for his 1,000-pound pet pig a gig as an unofficial mascot for the Washington Redskins, whose stadium is nearby in Landover, Md.

The film (which despite its documentary look is loosely dramatized, with directors Joe Frank and Zachary Reed having asked their stars to improvise based on happenings in their actual lives) has a disturbing intimacy and richness that are startling.

Casual remarks reveal that, for instance, Scooby’s girlfriend and her sister were killed in a car wreck that left him in a coma, while Rico has done prison time. Despite the underlying wretchedness, though, the characters exude a sense of having so little interior life that none of this, or anything else, fazes them. That’s disturbing, too.