I'll be honest, the plot of 'Devdas' feels almost secondary to its emotional devastation. It's about this guy, Devdas, from a wealthy family. His childhood playmate is Paro, from a lower-status family next door. They're inseparable as kids, but when they're adults and his family moves away, class and pride get in the way. He hesitates, doesn't commit to her when she practically begs him to take her away, and she ends up married off to a wealthy widower. Destroyed, he wanders, drinks himself to ruin, and finds solace with a courtesan, Chandramukhi, who falls for him.
But his soul is already poisoned by his regret for Paro. The whole thing is this downward spiral of self-destruction fueled by a love he was too weak and too proud to claim. It's not a romance in the triumphant sense; it's a tragedy about a man who destroys himself and the two women caught in his orbit. The main plot is basically watching a train wreck in slow motion, knowing every station it's going to miss.