When it was revealed Wednesday that Jim Carrey is releasing a novel, called “Memoirs and Misinformation,” some erstwhile NYC nightlife veterans and grizzled literary types zeroed in on a detail in the AP announcement.

The book’s co-authored by Dana Vachon — the Greenwich, Conn.-born onetime JPMorgan analyst turned mid-aughts literary darling who penned a 2007 Wall Street roman à clef called “Mergers & Acquisitions.”

At the time, Vachon was the toast of the town. A New York Times profile began, “Few 28-year-olds can pull off a pocket square. Dana Vachon comes close.” The piece followed the “notorious night owl” as he went to a Radar magazine party at “the clubby Beatrice Inn,” to dinner at Le Bilboquet and back to the Beatrice. It revealed he once “did the worm across the Temple of Dendur.”

Before the book came out, the movie rights were bought in the “high six figures,” Variety reported. The producers threw a party in LA at Bar Marmont, but the film never materialized.

Vachon told the Wall Street Journal, “I’ve got my next book already planned out.” A follow-up never appeared either — until now.