P.K. Subban was benched for Overtime.
So was Daniel Brière, who scored twice in the game's first 60 minutes.
Peter Budaj, who was brutal on Pittsburgh's first two goals, stopped James Neal, Sidney Crosby and Evgeni Malkimn in the Shootout.
And David Desharnais beat Marc-André Fleury to secure an unlikely W over the Eastern Conference leaders.
Brendan Gallagher opened the scoring, but the Canadiens fell behind 2-1 on firsty-period goals by Neal and Deryk Engelland.
Brière's first of the game tied it at 2.
Then things got crazy.
Olli Maatta made it 3-2.
Max Pacioretty's 27th tied it.
Brandon Sutter's third-period goal gave Pittsburgh the lead.
Alexei Emelin made it 4-4.
Crosby's power-play goal made it 5-4 before Tanner Glass's major penalty gave the Canadiens a five-minute power play and Brière's second of the game sent it to OT.
P.K. played not one second of the five-minute OT.
Nor did Alex Galchenyuk.
Nor Daniel Brière, who had two goals tonight.
On to the Shootout.
Brandon Sutter took advantage of a P.K. turover to score shorthanded for Pittsburgh.
Alexei Emelin tied it.
Sidney Crosby took a puck off Douglas Murray's stick and beat Peter Budaj to make it 5-4.
But early in a five-minute power play – after a questionable call on Tanner Glass – Daniel Brière's second of the game made it 5-5.
The comeback kids
Daniel Brière's 10th of the season erased a 2-1 Pittsburgh lead. George Parros's assist was his first point as a Canadien.
With Lars Eller in the penalty box, 19-year-old rookie Olli Maatta's seventh restored the home team's lead.
Less than a minute later, with the Canadiens on the power play, Max Pacioretty's 27th completed a spectacular series of passes by P.K. Subban, Andrei Markov and David Desharnais.
The assist was the 100th of DD's career.
Pittsburgh outshot the Canadiens 12-7.
Peter Budaj, playing both halves of a back-to-back for the first time since April, 2012, was weak on the James Neal goal that tied the game after Brendan Gallagher's 15th of the season opened the scoring.
With P.K. Subban caught in the Pittsburgh zone and Rene Bourque playing defence, Deryk Engelland gave the home team a 2-1 lead.
Both goals scored short side.
P.K. Subban and Josh Gorges on for both ... as they were for the winner Wednesday night.
Pittsburgh outshot the Canadiens 11-9 and will begin the second period on a power play.
Hit the reset button
Let's try this again.
The Canadiens were lucky to salvage a point against Detroit Wednesday night.
In their first game back from the Olympic break, the Canadiens played flat, uninspired hockey. There were more than a few boos and catcalls emanating from the 21,273 who paid premium prices to watch an "Optimum" game at the Bell Centre.
The home team gets better treatment at the Consol Energy Center in Pittsburgh.
And why not?
The Penguins have a star-studded lineup and are the top team in the Eastern Conference.
On their last visit to the Consol, Jan. 22, the Canadiens were pasted 5-1. Carey Price was chased 15 minutes into the second period after Evgeni Malkin scored the home team's fifth goal.
Peter Budaj came on in relief, stopped all 10 shots he faced and skated to centre ice to challenge Penguins' goaltender Marc-André Fleury during a third-period dust-up.
Fearless prediction: Budaj will stay on his end of the ice Thursday night.
Puck drops 7:10ish.
Check back later for live game blogging.
Pre-game reading: The great Charlie Pierce on his favourite hockey team (and ours)