Captain Duncan Maclain, the blind detective, with his two German Shepherd dogs Schnucke the guide dog and Driest the police dog, must prove his client innocent of his father's murder. But there is a lot of evidence stacked against the boy, and none of it matches up. The mysterious disappearance of some change, a fountain pen, a glass paperweight, a bottle of scotch and a ball of twine add to the mystery that incircles the M. T. & T. investment company, and its blinded manager Mr. Hadfield. Can Maclain figure out the solution before it proves fatal for him too.
