When the Paris airport management is informed by telephone that there is a time bomb on board a Canadian Atlantic Airways plane to Montréal, they initially believe it is a bad joke. But the caller answers again. Inspector Bignon gets involved...
A big explosion in a pulp mill causes a lot of damage. The police suspect a crime and put up a 5,000 Mark reward for information leading to the arrest of the perpetrator. Egged on by his wife Ursula, the insurance agent Rolf Kettner sees his chance to prove his detective capabilities and to track...
