A young American man in Paris spots a beautiful woman in a crowd and is instantly smitten, but soon loses sight of her. Later, as he and several friends are sitting at a table at an outdoor cafe and he is describing her to them, he sees her again. His friends begin to tease him about her, and he bets them that he can win her love in 30 days even though he has no money.

Shankar's father owns a fishing business one day while playing on the docks Shankar slips and falls into the sea and his saved by a little girl who turns out to be Mermaid ,years later Shankar and Johnny whose the son of his father's business partner run their fishing busness.Kaalia has scuffle with Shankar and hits him on his head and throws him in the sea where he is again saved by the Mermaid,The Mermaid comes to the city to search Shankar with his photograph which he had dropped in the sea the cops hand her over to Shankar and they both start living together and fall in love,Dr Jacob who has a doubt on her of being a Mermaid tries all possible ways to expose her few days before their wedding Johnny finds out the truth and asks her to leave as Shankar will be heartbroken after he finds her true identity but Shankar traces her after she leaves on their wedding day Dr Jacob exposes her by spilling water on her and forcing her to turn into Mermaid.