Overview

The latest assignment for respected detective Charlie Chan has come directly from the government and involves the disappearance of a scientist named Harper, who was working on an extremely important serum. When the scientist is killed, Chan must sort through all very likely suspects, including the man's sister and his butler.

Details

Cast

Sidney Toler

Mantan Moreland

Edwin Luke

Hardie Albright

Janet Warren

Al Bridge

Edith Evanson

Dorothy Granger

Cyril Delevanti

Jack Ingram