Udhayanidhi Stalin takes a slight deviation towards the action route in Gethu, which also stars Sathyaraj and Vikranth in important roles. The conflict element in the film arises from Vikranth's part as a sniper who is on an important assignment. Mime Gopi also has a role in the proceedings taking a serious turn. Sathyaraj plays a honest, righteous PT master in a school and Udhay is his carefree, unassuming son working as a librarian. How the two get out of the troublesome situation is the film's plot.

Gethu has good technical values to brag about, thanks to Sukumar's visuals and Harris Jayaraj's music. The film is set in a hilly backdrop and the visual tone is cool and pleasing. Like the director Thirukumaran's first film Maan Karate, Gethu also scores high on gloss and technical finesse.

The screenplay lets the film down and the ending doesn't live up to the thrills which were dished out till then. Amy Jackson has a small part as the bubbly love interest and looks delightful in the songs, as always. But the placement of the songs is unimaginative and they look force-fitted into the screenplay. The run time of the film is under two hours and this is a plus in the current scenario.

Vikranth hardly has dialogues and does well. Sathyaraj is bankable as ever while Udhay's performance is OKish. Amy doesn't come for most of the 2nd half like the typical Tamil commercial cinema heroine.

To sum up, Gethu is a well-made product which doesn't engage the viewer consistently.