Unfortunately, the Ducks tied the game quickly after when forward Jayson Megna got the best of the Canadiens netminder.
After 20 minutes of play, both teams returned to the locker room tied at 1-1. Shots were 13-11 in favor of Montreal.
The second period featured no goals, and the home side held a 24-20 shot advantage after 40 minutes.
Special teams hurt the Canadiens as the Ducks scored two power play markers in the third period, courtesy of Mason McTavish and Jakob Silfverberg.
Down by two, St-Louis called a timeout near the end of the game. With Montembeault pulled for an extra attacker, captain Nick Suzuki brought the Habs within one goal, but it was too little, too late for the visitors. Christian Dvorak and Drouin registered assists on the goal.