La Belle Arabelle

The Anodin family, is a French TV serial, in 8 episodes of 45 minutes, from 1956, on RTF.

An American traveling in Europe suddenly disappears, and his daughter, married to an eminent scientist, receives a letter asking her to go to Antwerp, which she does with her young son. Both are about to disappear. OSS 117 is asked by his superiors to solve these mysterious disappearances.