This is a very well-regarded psychological novel set during the Bourbon Restoration about an ambitious, well-educated, but low-bred young man and his attempts to improve his station in life.
I don't know. The popular consensus seems to be that Stendhal intended this to be a satire of the type of people French society propped up back then. Fair enough -- the bourgeois of his hometown, Verrières, are all tasteless money grubbers who communicate exclusively through gossip, the clergy of the seminary he ends up joining for a bit are at the lower level sheep who can't think for themselves and at the higher level constantly fighting each other over petty ideological differences, and the nobility are effete conformists who despite their power are afraid of the consequences of differentiating themselves from their peers.

Wasn't crazy about this one either. "Psychological realism" apparently means "character acting as stupidly as possible because his dad kicked him when he was a baby."
Yes, I always felt like I was on the verge of understanding Julien's character but he would always do something unpredictably goofy at the last minute and I would be like never mind.