Charlie is honored at a Shanghai banquet for his accomplishments, but before he can give his speech, he learns of sinister activities from Sir Stanley Woodland, a prominent official. When Sir Stanley is silenced, Charlie seeks to uncover the secret and the killer.

Charlie Chan in Shanghai
A legendary detective and his son form an unlikely duo to unravel a intricate web of deceit and corruption after a high-ranking official's murder at a luxurious banquet, ultimately exposing a massive opium-smuggling scheme.