an artistic work such as a play or movie that is characterized by sensational/dramatic events and exaggerated characters intended to appeal to the emotions;
e.g. A theatrical work can become a melodrama if it focusses more on drama than on the development of plot and characters.
(noun)
the genre of literary/artistic works characterized by exaggerated drama, or behavior, language, or events that resemble this genre in terms of their theatrical or sensational quality;
e.g. Her stories often involve melodrama and overly emotional moments.