The body of policeman Dan Grady is rescued in the San Francisco Bay lifeless and with clear indications of an execution. His good friend Captain Street, very touched by the tragedy, asks for the help of Mr. Wong and the journalist Bobbie Logan to solve the mystery.
The body of policeman Dan Grady is recovered in San Francisco Bay, lifeless, with clear signs of an execution. His close friend Captain Street, deeply affected by the tragedy, seeks assistance from Mr. Wong and journalist Bobbie Logan to unravel the mystery.