Young director Arivazhagan, ex protégé of director Shankar, has to be applauded for making a film that has unfamiliar story with interesting twists and turns.

Eeram, a crime thriller that steals down into a horror flick, lives up to the expectations. True to the title, the movie has Eeram (wetness) as its basic element and has made the feeling of wetness spreading through out the narrative.
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Eeram opens with the death of Ramya (Sindhu Menon), who is said to have committed suicide. But DSP Vasudevan (Aadhi), ex-lover of Ramya, smells rat and decides to look at the death in different angles. The rays of suspicion fall on Ramya's husband Bala (Nandha) and her neighbours.
Mysterious murders continue to haunt the apartment and hence the problem gets intensified. Vasu's meticulous search unearths some bizarre things and the truth is quite shocking.
Debutant director Arivazhagan succeeds in sustaining the interest of the audience. He has handled the murder sequences, investigation process, and the flash back sequences well. The unfolding of the mystery comes as a shocking. But the core issue of the 'morality' of the heroine has not been detailed in the script. Also the movie goes wayward once the mystery behind the killings is revealed. The lengthy second half mars the effect to some extent.
However, good show by the star cast, cameraman, and the director makes the movie watchable.
The movie is technically rich thanks to impeccable cinematography by Manoj Paramahamsa.
Adhi, who enacted the ruffian in Mirugam, has wonderfully transformed to portray a tough cop. His looks and body language are apt and credible. Sindhu Menon too is impressive while Saranya Mohan is competent. Nandha gets a role with shades and the actor does it with ease.
Music director Thaman, one of the boys in Shankar's Boys, has given a background score that fits the thriller. Aruivazhagan has made a movie that is rich in substance. Had the length in the second half been trimmed the movie would have been far better.
Eeram has come as a big relief amidst a lot of routine stuff in Tamil film scenario.