Franklin Osborne, preacher and leader of 'Divine World Church', is found dead in a motel. On the bedside table forensic doctor Quincy notes an empty tablet box and a bottle of whiskey - suicide? Osborne was an incurable diabetic. The public prosecutor's office investigated his church because of embezzlement of profit money. Quincy's autopsy results show no conclusion. However, a voluntary elimination of one's life doesn't appear to the resourceful doctor to be plausible enough. He requests a psychological certificate which might hold some surprises.