Prakash Chandra is a very efficient lock and key smith, and is a soon to be a married guy. While he makes all the necessary to tie the knot with his long time lover Sunu Lakshmi, his brother an auto driver, is brutally murdered. A few hours earlier as a favour for his friend Prakash breaks a lock and unfortunately gets involved in a burglary attempt. 

The locals and police investigators believe that he is the reason behind the robbery and the murder of his brother. He escapes both the crime scenes, and takes it upon himself to solve the mystery he has been tangled up in. How he does that and make the police believe that he has been framed forms the rest of the plot. 

Prakash Chandra has delivered a down to earth performance. His casual appearance and acting gels well with his role as a lock and key smith, and a guy who has been charged for two different yet connected crimes. The way he has emoted his inability to explain his honesty is appreciable. Aramm fame Sunu Lakshmi has given a decent performance too. Other actors who has been portrayed in important roles, have done justice in playing their parts neatly.

Though Prakash is the film's lead, the story is the hero. R Subramanian has attempted to make a tight liner suspense thriller, and has done a good job at delivering the mysterious whodunit portion of the film really well. Yet, the film's quality could have been a little better, and the screenplay could have been trimmed more as it is draggy in parts.

Sathish Thaianban has provided the music for the film and his scores are mediocre. But, compared to the songs his background music is much better. Sekar Ram's cinematography skills come to the fore and he could have shot better.

In short, Saavi, is an interesting watch.