Ugo thinks he inherited from a relative. Corsi shoots in vain at a robber, seriously wounding a child playing in the street. Ardenzi tries to trace the owner of the ring worn by the man who pushed Angela. The disciplinary opens an investigation into Corsi's actions, for the wounding of a child during a robbery. A heart patient is kidnapped and a kidnapper tries to get her a drug. Ardenzi traces the goldsmith who created the murderer's ring.