When Manirathnam did Iruvar and Kamal Hasan did Guna/Hey Ram - they were probably under no illusion about its commercial risk. It was their vacation to do what they wanted to do. Sort of a license they earned to make their best creative work ever. And they didn't waste that vacation. They made master pieces. The mass audience may not have liked those movie but their fans longing for that out-of-the-ordinary-movie did. They become cult movies. Gautham has wasted that wild-card. That license-to-do-anything has been used to do less interesting stuff. We indulged in him and while he didn't necessarily make a bad movie - he has settled for a low bar. Infact he has misunderstood "no compromises" to mean "I'll only include what people will never like" as opposed to "I am sure people will like this and I will defy the producers and distributors to prove it"
On the specifics of Nadunisi Naigal - I am hoping the 'psychological' in "psychologial thriller" doesn't just mean showing a person with mental problems to be a killer. It doesn't mean everything from hallucination to schizophrenia to child abuse must be thrown in. So much time has been wasted in describing the killer's early life and so little time describing his actual transformation into this monster. Incest rarely works in thamizh movies. Mostly because its a hard subject matter to handle. Outside of incest - I didn't think the adult scenes were classyly done. People with masks looked funny more than scary. And making the audience squeamish surely involves something more than putting hardcore stuff on screen. As to why his guardian would not report Veera's wrong doings to the police is beyond me. In Madras, Veera's house looks unrealistic. Hard to imagine he didn't have neighbors. Lastly Gautham fails where all modern thamzh movie directors fail. In showing a super edge-case scenario to be something that normally happens in day-to-day life. Mindless bimbo females who fall for just about any guy is probably more common. But how many child-abuse-nut-case-schizophrenic-serial-killers are there in this world? Shouldn't the director spend time context-setting the fact that he is going to tell a very unusual story.
It breaks my heart to diss a Gautham Menon film. But this was a let down.