Harvey, the arrogant and spoiled son of an indulgent absentee-father, falls overboard from a transatlantic steamship and is rescued by a fishing vessel on the Grand Banks. Harvey fails to persuade them to take him ashore, nor convince the crew of his wealth. The captain offers him a low-paid job, until they return to port, as part of the crew that turns him into a mature, considerate young man.
When a police officer is murdered, Captain Street looks to Mr. Wong to catch the killer. Prime Suspect: Frank Belden Jr., whose father is a businessman well known for both his success and dishonesty. Mr. Wong faces increasing danger and is nearly executed himself as the investigation develops in treachery and complexity. As Mr. Wong follows the trail of dead bodies, he uncovers a jewel smuggling ring on the San Francisco waterfront and a case much larger than the death of a police officer.