Manmadan Ambu is a 2010 Indian Tamil-language romantic comedy film directed by K. S. Ravikumar and written by Kamal Haasan. The film stars himself, Trisha and R. Madhavan in the title roles, while featuring Sangeetha, Oviya, Ramesh Aravind, Usha Uthup, Manju Pillai and Urvashi among others in supporting roles. The film features music composed by Devi Sri Prasad, with several songs written and sung by Kamal Haasan himself, while Manush Nandan and Shan Mohammed made their debuts as cinematographer and editor.

Plot

Ambujakshi alias "Nisha", a film actress, arrives in Europe to spend the vacations with her friend Deepa, a divorcee, and her two children Viswanath alias Vish and Bhagirathi. While going in a taxi, Ambu recalls an early incident regarding her ex-boyfriend Madhanagopal, a wealthy entrepreneur. Three years ago, she was shooting for a film with actor Suriya in a bright park, and Madhan was suspicious of her relationship with the actor. While returning, he let Ambu drive his new car. Madhan advised Ambu to stop acting but she refused, leading to an argument that almost caused their car to crash into a smaller white car. Unable to bear any more arguments, Ambu broke her relationship with Madhan and walked away.