Professor Boerne goes undercover as a patient in a hospital to investigate a murder.

Boerne's uncle visits and gets involved in a murder case.

A woman is found murdered in the swimming pool of a psychiatric facility.

The body of a young dancer is found in the forest.

The death of a chronically ill woman leads to a hostage situation.

An IT expert has fallen from his balcony, but is it suicide or murder?

Thiel and Boerne investigate a murder at the unveiling of a new public sculpture.

Detectives investigate a possible deadly feud between neighbors.

Thiel faces criticism after images of him laughing at a crime scene become public.

A champion market vendor is murdered by poisoned licorice.

An anonymous caller on Christmas Eve forces Thiel and Boerne to reopen a closed case.

Professor Boerne suffers a catastrophic accident that leaves Thiel suspicious.

A corpse in knight's armor is found in the moat of an old castle.

A spiritual teacher is found beaten to death in the forest outside a commune.

After blacking out, Thiel wakes up with no memory and a new murder to solve.

Boerne struggles to make a decision about a kidnapping case.