Dr. Jonathan Berg is found in his psychiatric practice, shot with his own gun days ago. Besides him is Johnny Elberse's death threat letter, but several other patients also prove highly uncooperative and/or unreliable. Furthermore, Berg tapes some sessions for his colleague, Dr. Douma's, research on a theory that mental diseases causes physical signs. De Cock finds further links, while the precinct stresses about PD reform prospects.
—KGF Vissers