melodrama

Short definition from Wiktionary

Noun

1. 1
   A kind of drama having a musical accompaniment to intensify the effect of certain scenes.
2. 2
   A drama abounding in romantic sentiment and agonizing situations, with a musical accompaniment only in parts which are especially thrilling or pathetic.
3. 3
   A passage in which the orchestra plays a somewhat descriptive accompaniment, while the actor speaks.
4. 4
   Any situation or action which is blown out of proportion.