Only the Wind Knows the Answer (1974) — crime, drama film. Directed by Alfred Vohrer. Starring Maurice Ronet, Marthe Keller, Karin Dor, Raymond Pellegrin.
Only the Wind Knows the Answer offers interactive tools beyond traditional movie databases:
Crime, Drama · 5.7/10 · 107 min · 1974
The yacht of millionaire Hellmann explodes in the Mediterranean Sea, with him and 8 men crew on board. Insurance agent Lucas investigates at the Cote D'Azur, because there's the suspicion that it could have been suicide. He finds out that Hellmann's villa was monitored, the tapes also contain information about the explosion. He uses them for blackmail.
Related entry on Wikidata (Q1211046), public domain (CC0).