Hitch-yathartham, Priyan and GJ Meet, Arivu back in picture

Muhurtam
Hariharan (Kanya's husband) has been making all the arrangements for Bharati's nichyathartham.
But her mother is back in circulation (not that Sivaperumal is in jail, and unable to keep her sedated). Somehow she is persuaded that it is ok for the function to take place without Sivaperumal (with a deft white lie by Mrs. Sivaperumal, to her mother-in-law's chagrin). But Devayani (Bharati's mother) cannot resist harping on Sivaperumal's absence at every turn.

On the day of the ceremony, Kanya and Hariharan are in the forefront, inviting everyone, etc. But when Hariharan hears Devayani tell one of the guests (disgruntled because Hariharan had not invited his father-in-law 'properly') that everything would have gone much better had Sivaperumal been in-charge, he cannot bear it, and as expected, drags his wife and kids and heads back to his home, just as Arivu's family arrives.

Selvi
Much action. The killer-cook 'Kala' is briefly questioned by Selvi after the poisoning incident, but let off. Ranjini is relieved, and dissuades GJ from following Selvi's suggestion that the dish might be lab-tested. Blame is generally assumed to lie at Selvi's home, and their lax standards of hygiene.

Meanwhile, Ranjini goes to Maya to give a post-mortem (no pun intended) report on the poisoning effort. Piriyan overhears, and writes a note to Selvi. This is intercepted by GJ (accidentally) and he tears up the note, and goes to see Piriyan directly at his home. Piriyan treats him with deference. GJ asks him to fetch a knife. Piriyan hands it to him. GJ lunges at Piriyan.

Manaivi
Main action surrounds Rohini and her family. Arivu hears of her appeal (very smart, they don't show Kalpana and Divya breaking the news to him, etc.). He is shown inquiring at Rohini's old terrace house, where a neighbor tells him what has happened. He goes to the police lock-up and persuades the constable to let him have a few words with the astrologer. The old man apologizes to him for how he had wronged him. Nandu shows up. Eyeball to eyeball confrontation between Nandu and Arivu.

Next scene, a lawyer shows up at the police station. Nandu is not there, but another officer is in-charge. When the officer says Nandu has left instructions not to release the astrologer, the lawyer produces a court order, upon which the officer is scared and orders the astrologer's release. When he comes out, the lawyer leads him to a car, where he sees...