[1] Eddie Darrow (Tony Curtis) works for American gangster Barney Pendleton, who sends him to Macao to find a woman, Christine Lawrence, and bring her back to the United States.

Aware of a previous romantic attraction between the two, Pendleton tells his thug Chalmer to follow Eddie on the trip, just in case.

At a nightclub and casino, Eddie saves the owner, Justin Keit, from some Chinese men attacking him.

Eddie denies this, claiming that he fully intends to follow Pendleton's orders and bring Christine back to the States.

As a gang war breaks out, Chalmer is killed and Justin does indeed turn out to be a ruthless criminal.