Add Beta nightclub owner Brad Roulier to the list of Regas Christou’s abundant enemies. As 5280 senior editor Patrick Doyle details at length for the latest issue of the magazine (and with essential annotated pop-ups online), Christou’s longtime reign as Denver’s nightclub king has rarely been without controversy. And now, the truth-embellishing, “foul-mouthed, hyper-educated” Christou—whose empire currently includes Vinyl, The Church, Bar Standard, City Hall, and The Living Room—has filed a lawsuit against Roulier, a former-employee-turned-competitor who also happens to own the world’s top electronic dance music website, Beatport.

Among the suit’s charges is that Roulier threatened to blacklist DJs from Beatport if they played at Christou’s clubs, writes the Denver Business Journal. Christou, who filed in U.S. District Court in Denver, says his business has been harmed by illegal anti-competitive practices, resulting in $1 million in losses.

There is “substantial evidence” to support his claim, says Christou’s attorney, Jeffrey S. Vail (via The Denver Post). Joe L. Silver, Roulier’s lawyer, retorts, “I think that Mr. Christou is really mistaking Beta’s popularity among the artists and the public as being unfair competition.”

Roulier once booked many of the acts for Christou, Westword notes, adding “There’s obviously much more to this story.” And that is certain to be the case, judging from Doyle’s assessment that, although “charming and smart,” the 58-year-old “Christou has never learned to speak without being defensive—or offensive.”