Lazio scored all their goals in a dazzling 24 minute spell just after half-time which stunned the home fans.
However, there was barely any action for either set of fans to get excited about in an incredibly dull and uninspired first half.
The "best" moment of the half came in the seventh minute when a good dribble from Goran Pandev saw him get inside the Torino area before firing across a low cross that nearly found Tommaso Rocchi in the box.
Rocchi himself saw a low effort from distance go harmlessly wide in the 31st minute, while Alessandro Rosina had Torino's best effort in the 28th minute, as he flicked a close range effort wide from a short distance with the angles working against him.
But in truth, the attacking play was so non-existent in the first period that both goalkeepers could have stayed in the dressing room and the score would have still been 0-0 at the break.
However, Lazio came out a different team in the second half and by the 71st minute they had scored four goals which turned the singing inside the Stadio Grande into a cacophony of boos and whistles.
The first goal came just three minutes after the restart.
The move started when Cristian Ledesma turned defence into attack with a magnificent low ball which found Stefano Mauri in lots of space. Mauri's resulting low cross wasn't the best, but Torino struggled to clear.
The ball eventually found its way to Gaby Mudingayi and he then picked out Rocchi in the box, with the striker's close range effort then trickling into the net despite Christian Abbiati's best efforts to stop it.
Moments later, Guglielmo Stendardo headed a Rocchi cross off the crossbar, and then 53 minutes in, the capital club had a penalty, although whether Rocchi was actually fouled inside the box was questionable.
Either way, Massimo Oddo converted the spot-kick to put Lazio in control, and when in the 67th minute Lazio went 3-0 up the game was well and truly over as a contest.
Again luck played a massive part in the goal, as Oddo's long range effort took a massive deflection off Marco Di Loreto to fly into the net. Oddo was credited with a goal, but when the Italian FA look at the replay they may decide it was an own goal.
Torino now looked well and truly like a side who haven't won all season, and things got worse for the Turin club in the 71st minute when Lazio made it four.
The lively Rocchi was involved again as he sprung the offside trap to find himself clear on goal. His effort on goal was saved by the outstretched leg of Abbiati, but the onrushing Mauri placed the ball into the roof of the empty net.
After that, Lazio were content to sit back and play on the counter-attack. As a result Torino enjoyed a couple of chances before the end, but they never really troubled a Lazio side who ran out comfortable and deserved winners.