‘Avan’ in Seethakathi is the aftermath of a poignant scene where a deceased legendary stage actor Ayya Adimoolam’s (played by Vijay Sethupathi) aura enters into the the bodies of the fellow actors, including that of a mediocre young actor Saravanan’s (played by Rajkumar) body. As a result, the cast members deliver an intense out-of-the-world (pun intended) performance, and this inspires a debutant director to cast Saravanan as the lead in his film, titled Avan. Ayya acts through Saravanan in Avan, thereby leading to fame and acclaim for the latter. Seethakathi is a literal adaptation of the quote-”The artist dies, but his art lives on”.