It was a strong response by the Red Wings after Chicago handled them easily in the series opener, 4-1.
"We've got a real good club now," Detroit coach Mike Babcock said. "And we haven't been good all year. We've just gotten better."
Their confidence got a big jolt after they knocked off the Presidents' Trophy winners and avoided falling into a deep hole. It was another big win by a team that finished seventh in the conference, only to knock off second-seeded Anaheim in the first round.
Now, they're even with a team that's been rolling along all season and is eyeing its second Stanley Cup in four years.
"Both teams would be stupid if they thought they were going to come in here and either team win four straight," Chicago's Brent Seabrook said.
Just as the Blackhawks did in Game 1, Detroit took control in the second period and put the game away in the third. Now, the Red Wings have a chance to take the lead when this series between Original Six rivals shifts to Detroit for Game 3 on Monday.
Sharks 2, Kings 1 (OT) • At San Jose, Calif., Logan Couture scored a power-play goal 1:29 into overtime to help San Jose bounce back from two losses in Los Angeles to beat the Kings in Game 3 of their second-round series.
Dan Boyle scored a power-play goal early in the first period and Antti Niemi made 26 saves for the Sharks, who got the penalty calls to go in their favor down the stretch in this game.
Rookie Tyler Toffoli scored the lone goal for the defending Stanley Cup champion Kings, who had won six straight games since dropping the first two games in the opening round in St. Louis. Jonathan Quick made 38 saves.
O Detroit 4, Chicago 1
Series tied 1-1
• San Jose 2, L.A. 1 (OT)
Kings lead series 2-1
• N.Y. Rangers at Boston, 1 p.m., Ch. 5
Bruins lead series 1-0
• Pittsburgh at Ottawa, 5:30 p.m., NBCSN
Penguins lead series 2-0