Gravelle, a former baritone believed dead after an opera house fire, has been languishing in a mental institution for the past seven years, an anonymous amnesiac. When he fortuitously sees a news story about his former wife's current appearance at the local opera, his memory returns. He escapes and, disguised in costume, seeks revenge for a failed attempt on his life years earlier. When the guilty parties are found stabbed to death, Charlie Chan and son Lee try to find out if the dangerous fugitive is the one responsible.
Charlie Chan at the Opera
A dangerous amnesiac escapes from an asylum, hides in the opera house, and is suspected of getting revenge on those who tried to murder him 13 years ago.
