A tragedy unfolded in a quiet pub: a young man named Alan Rogers burst into the hall, shouted out that he had committed murder, and then, in front of the shocked visitors, poisoned himself. Yes, but who did the unfortunate man kill and why? No body was found either in the town or in its environs. True, four people are listed as missing - maybe one of them became Rogers' victim? This is what the Scotland Yard inspector sent from London thinks so. However, Biff has his own opinion on this matter...

Biff’s strangest case: after all, everyone around is sure that this time he, aged, retired and engaged in private investigation, suffered a fiasco - he could not prove his innocence millionaire Stuart Ferrers, accused of murdering the family doctor, and then executed for this crime by court verdict. But only the retired sergeant himself and his best friend Townsend know what reasons prompted Biff to remain silent about the fact that in fact he managed to solve the case …