Jake DeBrusk scored the game-winning goal 25 seconds into overtime as the Boston Bruins beat the host Montreal Canadiens 2-1 on Thursday night.
DeBrusk drove to the net and slipped home a backhand shot after taking a pass from Boston captain Brad Marchand on a two-on-one rush.
Danton Heinen scored his fourth goal against Montreal this season, helping Boston go 3-0-1 against the Canadiens.
Linus Ullmark made 18 saves as the Bruins logged their third victory in four games.
Boston had a 24-19 advantage in shots on goal, scoring on the only shot of overtime.
Nick Suzuki scored Montreal's lone goal, and Sam Montembeault stopped 22 shots.
The Canadiens have lost three of four (1-2-1).
Boston (24) and Montreal (21) have played the first and third-most overtime games, respectively, in the NHL this season.
The Bruins went 0-for-4 on the power play. The Canadiens were 0-for-3.
The Bruins scored first 4:49 into the first period when Heinen slotted home his own rebound while falling to the ice low in the left circle. Montembeault made saves on David Pastrnak's drive from the opposite side and then initially on Heinen before the goal.
Three Boston hit the post in the first period to keep the Bruins from furthering their lead, including a Charlie Coyle backhander at the 8:03 mark early on the opening power play.
Suzuki's goal at 14:37 made it a 1-1 game entering the first intermission. Boston defenseman Brandon Carlo turned the puck over to Suzuki in the left circle, where an initial shot was blocked to Juraj Slafkovsky and passed back through traffic for an open shot.
The teams combined for just 11 shots in a scoreless second period, with Montembeault nearly getting a piece of Pastrnak's shot on the breakaway that hit the outside of the post.
Montreal killed Suzuki's four-minute penalty for a high stick to the face of Bruins defenseman Charlie McAvoy in the last eight minutes of regulation, despite Boston rookie Justin Brazeau's hard work at the net front looking for a go-ahead goal.
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