1944. King's Cross. The red light district of Sydney is alive with noise, bright lights, American soldiers on leave - and vice. Nearby, Annie Watson is hoping for a few days' vacation with her cousin, Monica Jeffrey. But when Annie intervenes to save an orphan girl, she is enmeshed in a murder conspiracy involving gangsters, drug addicts, thugs and prostitutes. Discovering the time and place of the arranged murder, Annie tries desperately, in her inimitable manner, to avert the tragedy. Unorthodox methods are called for, and Annie, as usual, is not afraid to use them.