Agapito is a vampire mosquito who lives with his family. Everyone likes to go to the cemetery tavern every night to drink shots of fresh blood, but all he cares about is music. He plays the trumpet and has always dreamed of playing in a real orchestra. One fine day, Agapito leaves the niche and travels far from home, where he meets the members of the musical group La ChicaCharcos & The Katiuskas Band.