Robin is called in to investigate a murder attempt on the life of Charley O'Brien, a young jazz pianist at the Angry Shark - a San Francisco night club. Robin intercepts a second attempt on young Charley's life. Beneficiary of Charley's ...See moreRobin is called in to investigate a murder attempt on the life of Charley O'Brien, a young jazz pianist at the Angry Shark - a San Francisco night club. Robin intercepts a second attempt on young Charley's life. Beneficiary of Charley's life insurance policy is his wealthy father, Joseph O'Brien, who is being menaced by syndicate leader Johnny Lucas who suspects him of selling them out to a crime investigating committee. But Robin learns that Charley is the guilty party. He saves the life of the father by revealing the son's guilt--then is able to save the son's life.
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