Based on 'Susanne Fröhlich''s bestselling diet book, this comedy focuses on Carla Hahn, hosting a radio show as "Christin, the sexiest voice of Berlin". However, her listeners don't know that she is full-figured. When Tom, a charming admirer, persistently calls her on the show, she wants to meet him. As he thinks she looks a slim top model, Carla desperately tries to loose weight until their first date...