

A pretty Chinese woman, seeking help from San Francisco detective James Lee Wong, is killed by a poisoned dart in his front hall, having time only to scrawl "Captain J" on a sheet of paper. She proves to be Princess Lin Hwa, on a secret military mission for Chinese forces fighting the Japanese invasion. Mr. Wong finds two captains with the intial J in the case, neither being quite what he seems; there's fog on the waterfront and someone still has that poison-dart gun...
Mr. James Lee Wong

Roberta 'Bobbie' Logan

Police Capt. Bill Street

Mr. Davidson

Capt. Guy Jackson

Capt. Jaime

Police Sgt. Jerry

Princess Lin Hwa

Willie

Lilly May
Bailey

Palisser Hotel Clerk

Sgt. Brady
Taxi Driver

The Coroner

Aged Tong Member

Police Officer at Explosion
Mute Dwarf

Police Commissioner

Tong Chief
