In the new adventure of Detective Clouse, someone is determined to ruin his great pleasure, which is milk. One morning, while drinking a glass to have energy and do well on his math test, he discovers with great horror that it has a mango-caramel flavor and aroma (unbelievable!!!), even though its label is normal. What could really be happening with the suspicious milk? Clouse takes on the case and this time he is not alone. He is helped by Olga's niece, who specializes in chemistry and undertakes to conduct a chemical analysis of the "contaminated" batch of milk.