The former operators of Marfreless — the oh-so-dark bar that hid behind the unmarked blue door under the stairs in back of the River Oaks Shopping Center for more than a decade until shutting down in the middle of last year — filed a lawsuit earlier this month against the group that later renovated the space and opened a bar of the same name inside it in January of this year. In essence, the suit claims that the bar’s current operators are imposters, and are using the Marfreless name in its former leased location — and claiming to have reopened it — without permission. “Marfreless was temporarily closed in March of 2013, when it transitioned to new ownership, the third in its distinguished lifetime,†reads the new Marfreless website, created by the bar’s current operators. But the lawsuit claims that isn’t true. “Despite these representations by Defendant,” reads a filing by Marfreless Ventures, LP, “no such ownership transition has ever taken place.”