It’s called Divorce Hotel, and the idea is this: Check in on Friday, married. Then, with the help of mediators and independent lawyers, check out on Sunday, divorce papers in hand, all for a flat fee.

And — why not? — toss in some reality TV for good measure. ..

Couples stay in separate rooms. A suite is used for mediation talks. Hotel staff members receive special instructions — and are told that these are no ordinary guests. “You don’t want the hotel crew wishing you a very nice weekend and hoping you have lots of fun here,” says Mr. Halfens, who evaluates couples first, to enhance the odds of success.

Divorce Hotel charges a flat fee of $3,500 to $10,000, depending on the complexity of a couple’s financial arrangements. Divorces in the United States tend to cost $5,000 to $20,000, though the cost can soar depending on the assets involved, the case’s complexity and, perhaps most crucially, whether child custody is an issue, according to Randall M. Kessler, chairman of the American Bar Association’s family law section.