Detective Chief Inspector Phil Benholme discovers that the death of Professor Unwala in his cluttered London study was no accident the Nobel Prize winner was in fact murdered. But Benholme's search for a motive -- brutal robbery? racist assault? the professor's link to a missing coin collection? -- leads him to an unfortunate conclusion: his own son is seems to be involved. What does a cop with a reputation for being soft do when his teenage son is his prime suspect?