Rishi moves to Chennai to work at a coffee as his father insisted him to do so. There he meets Priyanka Sharma who lives in his neighborhood, and immediately falls in love with her. When he approaches her, she rejects him initially, yet he continues to try his best to woo her. 

In the mean time, the area gangster, Raja Simman's brother will fall for Priyanka, and starts to mentally pressure her to reciprocate his love. On one such day he misbehaves with her and Rishi steps in between and beats him up. This news reaches Raja Simman and he seeks out for revenge, and he stabs Rishi. The rest of the plot revolves around whether Rishi is saved? and will Priyanka accept him?

Rishi as an actor has delivered a convincing performance. But, as a director he has done an average job. He has totally failed to keep the audience hooked to the story, as the screenplay is draggy, unreal, and a complete put-off. Priyanka Sharma's performance is ok-ish. Grandhala Vijay Bhaskar has handled the music department, and his songs are tasteless, while his background scores are comparitively better. JK Rajesh's cinematography skills come to fore and he has shots are decent.

In short, 143, is below average.