Ireland's ambition of defending the Grand Slam met a grim and brutal end as France coasted to an agonisingly-familiar 33-10 victory amid sub-zero temperatures in Paris.
All week the Irish had stressed the importance of preventing the Six Nations favourite from establishing an unassailable lead, which it managed to triumphant effect in 2006 and 2008.
But the same scenario unfolded yet again with an irresistible France surging 17-3 ahead by half-time with tries from William Servat and Yannick Jauzion.
Ten of those points arrived while prop Cian Healy was in the sin-bin, guilty of an early tackle on Francois Trinh-Duc, with the kicking of Morgan Parra also keeping the scoreboard active.
Parra stoked up the sides' rivalry on Friday by accusing Ireland of being a perennial cheat and voicing his lack of admiration for the champion, and today he stuck the boot in on the pitch with a near-flawless display headlined by 15 points.
France, expertly marshalled by first five-eighths Trinh-Duc, was magnificent as it stunned the shellshocked Irish with a mixture of power and ingenuity.
A try from Clement Poitrenaud and Parra's kicking added to the post-interval carnage to underline the gulf in class and the Les Bleus' title credentials.
Victory will taste all the sweeter knowing that Ireland arrived in Paris genuinely believing it could end its decade-long wait for success at the Stade de France.
Instead, Brian O'Driscoll's side utterly failed the first significant examination of its title defence to end its 12-match unbeaten run dating back to November 2008.
Given France's propensity for imploding, the race for the Six Nations is not over yet but Ireland was horribly exposed and this defeat was far more painful than 2006 or 2008.
Both of those matches witnessed courageous fightbacks that almost reeled in the French, but apart from David Wallace's 65th-minute try it did not have the ability or will to respond today.
It trudged off shellshocked at the final whistle, yet a promising opening suggested it might finally be ready to improve its record of just one win in Paris in 28 years.
Powerful early runs from Stephen Ferris, included after missing out against Italy because of a knee injury, and Jamie Heaslip swept them five metres short of the line.
France's defence reacted sharply, however, with Jauzion bottling up O'Driscoll before the attack became lateral and fizzled out.
Gordon D'Arcy was denied a try by the bounce of the ball after he charged into space and chipped ahead with winger Vincent Clerc, so often Ireland's try-scoring nemesis, coming to the rescue.
Jerry Flannery was lucky to stay on the pitch after referee Wayne Barnes failed to punish him for a trip on winger Alexis Palisson.
The pendulum swung as Imanol Harinordoquy used his bulk to make ground, resulting in a yellow card for Healy as he held back the supporting Trinh-Duc.
Parra landed the penalty before a lineout catch and drive secured France 10 yards with the pressure then cranked up by four successive five-metre scrums.
Ireland, a man down and buckling ominously, conceded on two of them before France went wide, drawing defenders into a maul and then exploiting a large gap in front of the posts by sending Servat over.
Parra converted but a penalty from Ronan O'Gara reduced the deficit to 10-3 - until France produced their second try the on the half-hour mark.
Mathieu Bastareaud bulldozed his way through midfield and was