Vishva (Prasanth) spends his time hanging out with Charlie to avoid his mother (Ambika) who always quarrels with his dad (Manivannan). To find peace, he plays tricks on others. Among the victims is Jothi (Isha Koppikar). The story moves to London, where Prasanth visits Princess Diana's grave and leaves a beautiful poem behind. At the same time, Isha too visits the grave and leaves a note after reading the poem. Then begins a warm relationship between Isha Koppikar and Kasthuri. In "Kaadhal Kavidhai", Isha Koppikar and Prasanth love one and another without seeing each other. Kaadhal Kavithai is a movie where the man knows the girl but doesn't know that she is the one he is in love with.Kasthuri plays a glamorous role in the movie. It grossed 1 million at the box office.