In between reeling off numerous quotations from Rajinikanth’s previous films, Subbaraj spins a yarn that spans generations and locations. Petta has traces of the Hindi film Main Hoon Na even as it reworks Rajinikanth’s older blockbusters, most notably Baasha from 1995. The screenplay has two distinct parts. The first is better, with fewer characters and a lot less going on.
Rajinikanth plays Kaali, the new hostel warden at Saint Woods College, which is plagued by corruption and bullying. The over-achieving Kaali cleans up the place overnight by showing thuggish student Michael (Bobby Simha) and his posse who the real boss is. In between brandishing his fists and a nunchaku, Kaali displays his cooking skills, an impeccable taste in old Tamil film music and finds the time to size up Mangalam (Simran), the mother of one of his students.
Mangalam is soon eclipsed by a host of other characters who hold clues to Kaali’s not-so-mysterious past. Nawazuddin Siddiqui is wasted as opportunistic Right-wing politician Singara, but Vijay Sethupathi waddles his way to prominence as Jithu, Singara’s son and chief trouble-maker. Jithu finds something better to do than disrupting Valentine’s Day celebrations and punishing “anti-Indians” (this movie’s feeble attempts to smuggle a politic message into an entertainer), setting up a blood-splattered climax that promises a sequel.