Botschafter morden nicht

The Hamburg private detective Weber is asked by his old school friend and bosom friend Hagen Ebers to Lisbon to search for the missing wife of the FRG ambassador Akolk, who is said to be suffering from a temporary disturbance of consciousness. But soon Weber comes across the corpse of the scientific director of a chemical plant that produces highly toxic substances. The private detective unexpectedly finds himself in the middle of a confusing game in which not everyone is what they say they are.