Aalavandhan is notable for its ambitious storytelling and innovative filmmaking techniques, especially for its time. The content delves deep into psychological themes, combining elements of thriller and drama with intense character study. The screenplay is layered and complex, employing flashbacks and hallucinations to depict the disturbed mind of Nandu, which can be both engaging and challenging for the audience.

The pacing of the film is uneven; the first half sets up the mystery and builds tension effectively, while the second half becomes more experimental and intense, which might not appeal to all viewers. The use of animation and visual effects to portray psychological states was pioneering but received mixed reactions. The songs and music, composed by a team including Ehsaan Noorani, Loy Mendonsa, Mahesh Mahadevan, and Shankar Mahadevan, are well-crafted but are used sparingly, fitting the film's dark tone. The background score stands out for its haunting and atmospheric quality, significantly enhancing the film's mood and psychological depth.

Overall, Aalavandhan is a bold and stylistically unique film that pushes the boundaries of conventional Tamil cinema, though its experimental nature and complex narrative may limit its mass appeal.

Kamal Haasan: Delivered a powerful dual role performance, portraying both Vijay and the disturbed Nandu with intensity and nuance.

Raveena Tandon: Played a supporting role with grace, providing emotional depth to the storyline.

Anu Hasan: Provided a solid supporting performance, complementing the main cast.