Charlie returns to China, where he's honored at a Shanghai banquet. Before he gives his speech, a prominent official named Sir Stanley Woodland shares a secret with him, but is silenced by a booby-trapped box. Charlie then works to uncover the secret and identify the killer, aided by a police commissioner, a G-Man, and his son Lee, as they expose an international opium-smuggling ring in Shanghai.
Charlie Chan in Shanghai
The murder of a high-ranking official at a banquet celebrating the legendary detective Charlie Chan sets off a chain reaction as he and his son Lee work together to uncover a sinister opium-smuggling operation.