Invited for a anniversary celebration, Kindaichi, Miyuki and inspector Kenmochi re-visit the Opera House. There they discover that a play of "The Phantom of the Opera" is being rehearsed again. However, it doesn't take long when members of the acting troupe are killed by the "Phantom". Kindaichi will once again have to solve a murder series in the Opera House.
Unfortunately the movie Kindaichi Case Files: The Third Opera House Murders is not yet available on HBO Max.
| Directing | Naoyuki Ito | Director |
| Directing | Konosuke Uda | Director |
