A demanding father and an overachiever brother force Karthik to try and buy his way into a medical college. But a blunder from him results in Karthika getting admission in his place. He goes to confront the girl but is love-struck when he sets eyes on her. Meanwhile, plans are afoot to get Karthika married to his brother Vignesh...
Kalkandu is the kind of story that Tamil cinema had beaten to death in the 90s. We have a carefree young man, his strict father who doesn't hold him as high as his brother, who is a successful doctor and a respectful son. The heroine initially dislikes him and uses him only for her personal gains but later realizes that she is actually in love with the guy. But before she can tell him that, the parents arrange a match with another guy, who, unsurprisingly, is the brother of the hero. The hero decides to be the good son for once and tries to avoid her and things are taken as far as the wedding day when the duo is brought together by the very person who had come in between their love — the brother. All that is missing in this Hum Aapke Hain Koun...!-ish is a pet dog that acts as the go-between for the lovers. Here, instead, we have three friends from his side and one from hers.
It might not appear so bad if Nandakumar had told this familiar story in an interesting manner. But what we get is an overlong film with TV serial-like drama, bland romance, lackluster songs and college skit-level humour. We get the mandatory Mano Bala and Mayilsamy comedy scenes, a TASMAC song and a desperate attempt to bring in some time when Karthik, like Bharath in Aindham Thalaimurai Siddha Vaidhya Sigamani, tries to pass off as a doctor and gets caught. But after a point, the middling comedy sort-of becomes the saving grace of the film. One situation in particular, when Karthik and his friends chase Karthika's friend to learn about the heroine's whereabouts and a drunken Mayilsamy mistakes this and flees from them is well thought-out.
The one reason why someone might want to check out this film is because a third generation actor from the Nagesh household is making his debut with this film. But in a way, Gajesh's situation is quite similar to that of his character. His grandfather is a legend in the industry while his father, Anand Babu, is a well-known actor. So, the youngster is expected to match up to them but considering that this is his first film, his performance is just about passable.