The Panthers evened their best-of-seven Second Round series against the Maples Leafs following a 2-0 win at home.
Sergei Bobrovsky made 23 saves to earn the shutout as the series is now tied 2-2.
Game Five is in Toronto Wednesday night.
The Panthers have bounced back after a challenging start to the series playing their best game yet with strong teamwork and defensive skills.
"That was more like the Panthers playoff hockey we're used to," said Sam Bennett. "Tighter game, less opportunities we didn't give up. We did a good job of limiting their chances."
Elsewhere around the league, the Stars soared past the Jets in Game Three of its best of seven West second round series. Dallas now leads the series 2-1 and will host Winnipeg for Game Four on Tuesday.
A pair of Game Fours are on the slate for Monday night. The Carolina Hurricanes host the Washington Capitals up 2-1, and the Edmonton Oilers are hosting the Vegas Golden Knights leading their series 2-1.