Most of our full-length filmi romances unfold against a rural or small town backdrop and urban romances haven't been all that common. So, Doo, an urban romance, is the newest addition to a rather short list. The film is able to portray well a faltering romance between its two leads but stumbles when it shows the patch-up of the same romance.

Vasanth(Sanjay) works in the registrar office. He meets Swapna(Nakshatra), to whom he had proposed - and gotten rejected - when in school. His love is rekindled when he sees her and this time she reciprocates his feelings too. But their different attitudes and refusal to compromise lead to constant tiffs that eventually result in a split. That's when Vasanth meets Anu(Sangeetha Bhat), who seems to be a perfect match for him.

As the name indicates, the film starts off with a break-up before showing us what led to that. During these portions, the romance between Sanjay and Nakshatra is believable. Like Kushi, the romance here too is plagued by issues caused by the characters and attitudes of the lovers rather than external factors. As Sanjay is angered by Nakshatra's casual rejection of acts he put his heart into or Nakshatra questions the very validity of those actions, the tiffs between them(like the one at the treat they give to her friends) start and escalate in a realistic fashion.

The other factor that makes the romance engaging is that the film isn't biased. Unlike most romances, this one doesn't lay the blame at the feet of the heroine. Their contrasting characters - Sanjay is sentimental and emotional while Nakshatra is more practical and less prone to emotions - make their arguments feel valid. At various points during the fights, we are able to see and understand where both of them are coming from. They may not be right for each other but they are right considering their emotional make-up.

Sangeetha is brought into the picture at a crucial time. Her compatibility with Sanjay offers a nice contrast to his differences with Nakshatra and generates suspense about who he will end up with. Unfortunately, the movie doesn't allow this suspense to grow. It almost feels like the director didn't know how to resolve the love triangle he was setting up and took the easy way out. So the relationship between Sanjay and Sangeetha is vague and confusing. The final portions add a couple of minor twists which don't add much but the setting for the climax is nice and leads to a nice and funny way for a romantic cliche to be realized at a key moment.

Sanjay, acting in his second urban romance after Mundhinam Paarthene, doesn't show any difference in his performance and his acting is rather low-key. Nakshatra brings a lot more energy to her performance and almost brings us to her side during her spats with Sanjay. Sangeetha Bhat is adequate as the model match for Sanjay though the lack of clarity about her thoughts is frustrating. Among the seniors, Urvasi provides the comedy as she worries over Nakshatra and fawns over Sangeetha while Rajesh is convincing as Nakshatra's dad, trusting her to take the right decisions about her life.