Goundamani, who is all set to make a comeback to the silver screen with Vaaimai, will be seen playing the a cardiologist, Doctor Benny in the film. The film features Shanthnu and Muktha Banu in the lead roles. It is being directed by debutante Senthil Kumar, a former associate of Vasantha Balan. Shanthnu, who had gained weight for his previous film Ammavin Kaipesi, had hit the gym to get back to shape for his character in Vaaimai, which is touted to be an action entertainer.