A young controller of a firm commits suicide before the audit of the books. Was it a suicide? Maris is not so sure and investigates.

A policeman is charged for the murder of a bookie. The ones who are the likely suspects have an airtight cover story. Maris takes the case to help the policeman.

The testimony of a witness has dire consequences for a man charged with murder. However, the victim's last words do not implicate the man charged with the crime. Maris investigates.