Art of Killing follows Mint, an art student who takes pride in her final painting. On the day of her art presentation, she faces her strict professor, whose cold and harsh criticism silently shatters her confidence. After the presentation, Mint hides her despair behind a fragile smile and retreats to the restroom — where her broken painting lies in pieces. Through her phone call with her mother, she pretends that everything went well, masking her pain with the smallest of lies. When the professor unexpectedly walks in, the two stand face-to-face in silence — connected by guilt, shame, and the quiet violence of words.