A Youri Tielemans double, a Jamie Vardy tap-in and a Harvey Barnes finish condemned Leeds United to their third Premier League defeat this season.
It was a night full of misplaced passes, defensive errors and poor quality in all areas of the pitch for Marcelo Bielsa's men, although there was a stage when the Whites were very much still in the game.
Leicester City were gifted a 1-0 lead just two minutes in when a tame Robin Koch backpass was punished. Vardy found Barnes who was left with an open net and Leeds never managed to recover from that early setback.
Could it have been a different game?
The answer to that is yes. It's hard to justify an argument that Leeds could have won last night because of how brilliant Leicester were but things certainly could have been different.
17 seconds before Barnes put Brendan Rodgers' side ahead, Patrick Bamford had a golden opportunity to give Leeds the lead.
A lively opening minute for Leeds saw wide-man Helder Costa get down the right flank and whip in a deeply floated cross to the back post.
Fellow winger Jack Harrison was there to meet it, as he headed it back across goal and into the penalty area towards Bamford.
With just Kasper Schmeichel to beat, Bamford could only force his header straight into the gloves of the Leicester goalkeeper.
If he directed that header either side of Schmeichel, it would have been a certain goal.
Leeds headed into the half-time break 2-0 down but just two minutes after the restart, Stuart Dallas whipped in a cross that missed everyone and bounced into the net past Schmeichel.
At this point Leeds have to be thinking 'this is perfect, we're right back in this', and they were.
For 15 minutes, Leeds looked more like their dangerous selves.
They created more, Leicester had eleven men behind the ball and then El Mago, Pablo Hernandez, stung an almost perfect effort into the top right corner but it came crashing off the bar.
Schmeichel didn't move. That was the game right there. The fine margins of the Premier League. That was where the game was won and lost.
So, could it have been different? Yes, the scoreline might have swung Leeds' way early on and they might have got back into the game at 2-2 in the second half, but the truth is, defensively Leeds were far too open and playing the way Leeds did last night was not good enough.
Bielsa and his men were taught a lesson last night.
Bielsa is typically renowned for his high press and slick attacking play but he is also proud to boast resolute defensive units.
Last night, Leeds were far from resolute defensively.
Koch's backpass for the first goal is the obvious error to highlight but the whole backline was far from their usual excellence.
Last season, the Whites had the best defensive record in the Championship with 22 clean sheets and an average of just 0.8 goals conceded per game.
The absence of holding-midfielder Kalvin Phillips proved huge for Bielsa last night with Leeds struggling to pounce on any second balls, which Phillips normally does so well.
In the first half, Bielsa's commitment to throwing men forward backfired a handful of times as they were left short at the back.
Full-backs Luke Ayling and Stuart Dallas were caught too high up the pitch too often and Vardy's pace against Koch and Whites captain Liam Cooper made it hard for them to recover and get back into their defensive shape.
Leeds' quality of passing between the backline and goalkeeper was also off the usual pace. French goalkeeper Illan Meslier struggled to find his range and fired balls into the stands several times, gifted the away side possession.
Polish Midfielder Mateusz Klich handed Leciester a penalty late on after a needless challenge on James Maddison and that summed Leeds' night up.
All of the things Leeds are normally so good at defensively were a miss.
Pablo Hernandez not happy
In the 67th minute, Bielsa decided it was time to make his second substitution of the game.
The board went up and shining green was the number 11, Tyler Roberts. In red, number 19, Pablo Hernandez.
It is fair to say the 35-year-old Spaniard was less than impressed with the Argentines decision to replace him.
He strolled off, over the far side of the pitch, kicking a bottle in anger as he made his way off the turf.
Was Hernandez right to be angry?
He has proven that even with age not being on his side, he still possesses very high quality.
Last night he made 43 accurate passes, had 66 touches of the ball, one shot on goal and a pass success rate of 79%. 11 of his passes were cut out or intercepted.
His influence on the game yesterday was minimal but, as said before, his quality is undeniable.
He showed that with his effort which echoed off the bar.
In terms of his performance, it wasn't one of his best and a replacement can be easily justified by Bielsa because of that.
Bielsa now has some thinking to do before his side head south for a trip to Crystal Palace on Saturday as Leeds look to improve on what was a very below-par performance.