1. Julian Marks is a pianist.
2. The concert was to be held at the prestigious City Hall.
3. Julian's violin was missing backstage on the day of the concert.
4. Detective Elias Hart is renowned for his impulsive decision-making.
5. Julian was receiving mysterious emails that caused him stress.
6. The threatening phone calls to Julian were from a known rival.
7. Julian's rival wanted to replace him at the concert.
8. Julian was found in a nearby city and had fled there to avoid media attention.
9. Detective Hart managed to resolve the mystery by himself without any help.
10. The concert was cancelled permanently due to Julian's disappearance.
