Bharath (Vijay Antony) is a surgeon in America. Every time he sleeps, he gets a dream about a bull chasing a baby and a woman's voice. When Bharath's mother goes into an emergency kidney transplant surgery, he decides to be her donor, but his father reveals it may not be possible because he is an adopted son. After his mother's successful surgery, Bharath goes to India to find out about his biological parents. Upon inquiry in the orphanage he grew up, he finds his mother's village and befriends Gopi (Yogi Babu). They find that Bharath's mother's name is Parvathy, his actual name was Kaali, and she died trying to save him from a charging bull. Bharath assumes the name Kaali and is able to piece together the reason for his dreams. When he asks about his father, nobody seems to know who he is. Kaali sets up a clinic in the village and tries to do a DNA match test of all the patients who come there. There is a sharp decline in the number of patients coming to a local Siddha doctor Valli (Anjali (film actress)). She plays pranks on Kaali, and they get to know to each other.