A little girl's search for her biological mother who had abandoned her as a new born baby is brought our poignantly in A Peck on the Cheek. Mani Ratnam proves yet again that he is at his best when tackling human emotions and relationships. Amudha is adopted by Thiru and Indira and grows up with their two sons. She is blissfully unaware of her parentage till the doting couple decide to inform her of it, on her ninth birthday. At first shocked into disbelief, Amudha finally expresses her determination to meet her biological mother. The search take the family to a strife-torn Sri Lanka, where Amudha comes face-to-face with reality, and reconciles herself to her predicament.