Professor T is called upon to help solve a rape case with circumstances identical to an unsolved 10-year-old incident.

Professor T helps with the investigation of a double poisoning case at the university, much to the dismay of Chief Inspector Rabet.

The chairwoman of the school inspection team is killed during a robbery, and Professor T is certain the case is more complex than it appears.

The team uncovers a series of hidden secrets that explain the disappearance of a first-year law student.

Professor T launches his own investigation when Commissioner Flamant forbids him from looking into the murder of a plastic surgeon.

A call girl is found dead in an apparent suicide, but Professor T knows more about the victim than he lets on.