In the movie Detective Conan: Full Score of Fear, the opening concert of the Music Hall has been organized to celebrate the completion of the new building. However, the concert is marred by a series of murders of the members of a prestigious music school, all of whom are tortured before dying.
The murders are carried out in different ways and the police are unable to find any clues that could lead them to the murderer. Conan, who is present at the concert, decides to investigate the case and uncovers some shocking secrets about the pianist and the school.
As the investigation progresses, Conan discovers that the murders may be related to a mysterious piece of music called "The Black Star". The music was composed by the pianist's father and is said to contain a deadly curse. The pianist had inherited the music from his father and had been keeping it a secret from the world.
In the end, Conan and his friends are able to solve the mystery and capture the killer. The movie ends with the pianist playing "The Black Star" on the piano, breaking the curse and putting an end to the murders. The concert is a grand success and the audience cheers as the music fills the hall.