When a suspected fraudster resists arrest, Inspectors Falke and Lorenz go by the book and check him into custody overnight. But when they return to question him in the morning, the are faced with another mystery to solve...

A dead body mysteriously falls into a swimming pool. Inspector Falke is lead to a nearby airport to investigate. Quickly he is onto the truth behind the tragic death, and as he teams up with airport officer Inspect Julia Grosz, the two are soon brought on to investigate another shady passenger…

The inquiry into the death of an engineer at a gas plant is stalled when the locals start to act oddly. Has the pollution got to their heads? Or is something more sinister at play?