Former Real Madrid striker Gonzalo Higuain scored twice to help Napoli to a 4-2 win at Lazio which saw Rafael Benitez's team close the gap on second-placed Roma to three points.
Goran Pandev was also on target against his former club, while Jose Callejon sealed the points in injury time.
But Napoli did not have things all their own way, and a Behrami own goal had levelled the score at 1-1 following Higuain's opener.
And with the score at 3-1, Keita Balde Diao pulled a goal back for Lazio before Callejon settled the match.
The win ended a run of two successive defeats for Napoli, but the Rome club saw their winless sequence to five league games as they slipped below AC Milan into ninth place on goal difference.
Higuain opened the scoring for Napoli in the 24th minute when he was found by Gokhan Inler's ball.
The former Real Madrid striker still had plenty to do, though, and he slipped the attentions of his defensive marker before slotting the ball home.
The Rome side were in no mood to allow Rafael Benitez's team to build on that lead, however, and were on levels terms just a minute later.
Hernanes' diagonal ball fell perfectly for Antonio Candreva, whose cross back into the area was inadvertently turned into his own net by Behrami.
Five minutes after the interval, Napoli were back in front. A free-kick found Higuain on the left edge of the Lazio area and the forward was gifted plenty of time to find the cross.
His ball to the far post was nodded down by Christian Maggio to the feet of Pandev, and his swivel shot flew beyond Federico Marchetti.
In the 72nd minute, the Napoli goalscorers combined with Pandev threading a great ball through to Higuain just inside the area.
There was only going to be one outcome and the striker netted his seventh goal of the season for Benitez's side.
However, Lazio refused to give up and, in the 88th minute, 18-year-old Keita showed great control to move across the edge of the area before finishing well with his right foot.
Napoli, though, sealed the three points in the first minute of injury time. Substitute Dries Mertens expertly reclaimed the ball in a tackle just inside the Lazio area, and played a great pass through to Callejon.
The former Real Madrid man raced in on goal and slid home the fourth of the game for the Naples club.