
Lois Fox, upon whose shoulder is branded a Chinese idiograph resembling the letters "A. Y.," is rescued from a gang of Chinese ruffians by Brice Ferris. His servant Ming, in attempting to steal from her finger a ring that bears a mysterious green seal, is killed, and soon afterward a stranger named Strang arrives, also in search of the girl. Despite Brice's efforts to protect her, Lois is abducted and taken to the headquarters of Lao Wing, the leader of a secret Chinese society known as the Tong.

Carmel Myers
Lois Fox

Ashton Dearholt
Brice Ferris
Frank Tokunaga
Ming (as Frank Tokanaga)
Frank Deshon
Lao Wing

Harry Carter
Strang

Alfred Allen
Chief of Police Struber

Betty Schade
Sally

Montmartre Rose
Montmartre Rose

Barriers of Society
Barriers of Society

The Black Sheep of the Family
The Black Sheep of the Family

The Mainspring
The Mainspring

Mixed Blood
Mixed Blood

The Narrow Path
The Narrow Path

The Whirlpool of Destiny
The Whirlpool of Destiny

Black Friday
Black Friday
The Dream Melody
The Dream Melody

Held by the Law
Held by the Law

The Gates of Doom
The Gates of Doom

Heart Strings
Heart Strings