Carl Söderberg and Joakim Ryan led Malmö to a two-goal lead in the first period break.
3.37 into the second, Mikael Ruohomaa made sure that it was equalized with two quick goals.
Fredrik Händemark made sure that Malmö took back the initiative, but that was the fun end for the home team.
Martin Karlsson equalized and with three minutes left in the match, Matt Caito beat Leksand 4-3 in numerical superiority.
With just over a minute left, Emil Heineman sent the puck into the empty Malmö box.
Series-leading Leksand has as many points - 34 - as Frölunda after 16 games played.
Rögle, third in the series with two fewer matches played, stands at 32 points.