Two wonderful second half goals from former Chelsea striker Romelu Lukaku defeated the Blues in a game that saw both sides finish with 10 men following Diego Costa and Gareth Barry being sent off.
Bright start from Everton as tensions flare early on
Everton started the game quickly and were determined to press Chelsea at every opportunity. It was just over a minute into the game and Thibaut Courtois was already put to work as Tom Cleverley struck towards goal, however his effort was easily saved.
Tackles were flying in the opening 20 minutes of the match, with Diego Costa being fouled and retaliating, leading to a yellow card after he used his elbow towards Gareth Barry.
Young Brazilian Kenedy was also involved in a clash with Seamus Coleman which infuriated the home fans despite there not being much in the challenge.
In the remainder of the first half few chances were created as both teams were focused on remaining solid defensively. Chelsea had a good spell of possession before half time yet nothing was to come of it, and the two sides went into the break on level terms.
End to end play sees Lukaku run the show
The first 20 minutes of the second half was much more end to end. The best chance landed to Diego Costa who rounded Joel Robles from a tight angle but couldn't squeeze the ball into the net.
It was now Everton who were to have more of the ball and with 13 minutes remaining on the clock it was former Blue Romelu Lukaku who broke the deadlock as he weaved his way past the Chelsea defence before slotting past Courtois.
With just 7 minutes left on the clock the Belgian striker struck again, this time firing the ball through Thibaut Courtois' legs with his right foot.
Costa and Barry see red, is it the end of Chelsea's season?
Chelsea's Diego Costa was again involved in controversy after he reacted to a foul from Gareth Barry with a movement of the head and a shove in the chest, referee Michael Oliver showed Costa his second yellow card and the hot-headed striker was sent off for the first time in his Chelsea career.
Just 2 minutes later it was Gareth Barry's turn to see red as he was sent off for a second bookable offence for a foul on Cesc Fabregas.
The defeat leaves the Blues with little to play for during the remainder of this season as their hopes of winning a trophy are now completely gone.