David Strettle scored a hat trick of tries, the last of which helped Saracens edge over the line against their London rivals.
Strong first half from Saracens
With Saracens 20-6 up at half time it seemed like the match would end up very one sided.
It was Saracens that got the opening try, with Ashton scoring after the ball was kicked through, which Hodgson converted to make it 7-0 to the men in black.
However Saracens were down to 14 men after Kelly Brown was shown a yellow card. Ex Saracens fly half Andy Goode slotted over the resulting penalty to get Wasps into the board at 7-3.
Strettle then went over for Saracens after 21 minutes had gone to put them 20-6 up.
Wasps second half resurgence
Wasps fought back in the second half however, taking just four minutes to score their first try of the season. After Joe Simpson found space in the middle. He offloaded the ball to Nathan Hughes to cross the line.
Wasps took the lead for the first time in the game after a chip through from Andy Goode. The ball had looked to be going over the dead ball line. However Christian Wade used his pace to get to the ball and touch it down.
However Saracens found an answer to Wade’s try to make it 27-28 and a close to finish at Twickenham.
Last minute drama
Owen Farrell had the chance to give Saracens the lead with a penalty with 5 minutes left. However the England youngster was only able to push the ball to the left of the posts. This set up a nervous end to the game for both teams and their fans.
However Saracens showed why they only lost 3 games last season and snatched a last minute victory.
David Strettle scored in the corner to give Saracens their fourth try of the match and a bonus point.
After some scrutiny from the Television referee, the try was given . It was shown that Strettle had touched the ball on the line before he was bought into touch in the corner.