There is a lot of info missing...
How many people are left? How many chips do you have? How many chips does everybody else have? Are people close to being eliminated?
If the blinds are 10/20 it is probably relatively early, and assuming nobody out of the 6 total players have been eliminated, and the top 3 get ITM.
If you call and win, there are 4 people left and you are ultimately ITM. If you fold and let the other 2 go at it, one of them will ultimately eliminate the other, and there will only be 5 left.
I personally would've called. KK is not gonna lose too many times, and if you won that hand you would be ITM easy.
Also for future references, try posting hand histories instead of explaining the hand...