Strange things are happening in the evening at the mansion: glass things break without any apparent reason. Professor Calculus, somewhat apathetic to the whole series of events, leaves the following day to attend a conference on nuclear physics in Geneva. Foreign powers get wind of his work and send their agents to investigate.
Director:
Georges Poujouly
Tintin (voice)
Jean Clarieux
Captain Haddock (voice)
Fernand Fabre
Professor Tournesol (voice)
Jacques Marin
Dupond / Dupont (voice)
Lita Recio
Bianca Castafiore (voice)
