Half-Indian girl brought up in a wealthy household is loved by the son of the house against his family's wishes and loves another Indian employed by the household.

In Shanghai amidst Sino-Japanese warfare an adventurer (Sanders) collecting money from gun suppliers falls in loves with a French singer (Del Rio).

The Falcon travels to Mexico where he gets involved with murder and a mysterious painting.

A groom-to-be contracts syphilis and wrestles with the consequences of his diagnosis.