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.
The numerous animals that live at Antwerp zoo can rely on a small army of chefs and kitchen personnel to provide them with appropriate meals. Scientific tests are carried out in order to improve the animals' living conditions. Deceased animals are dissected in order to establish the cause of death....
