Inšpektor Vrenko se z očetom Borisom odpravi na oddih v znane prekmurske toplice, tam pa priskoči na pomoč svojemu kolegu inšpektorju Štefanu Houri. V ugledni prekmurski hotelirski družini se je zgodil umor, žrtev je lastnica hotela, za njenim možem pa se izgubi vsaka sled. Čeprav bi inšpektor Houra rad čimprej zaključil primer, saj je prepričan, da gre za »klasično slovensko tragedijo« po sporu zakoncev, pa Vrenkovo oko opazi podrobnosti, ki ga popeljejo celo do Maribora. Medtem ko Vrenko s Houro razrešuje umor, se oče Boris v termah spoprijatelji z dobrovoljno vrstnico Ano.
Inspector Vrenko and his father Boris go on vacation to the famous Prekmurje spa, where he comes to the aid of his colleague inspector Štefan Houra. A murder has taken place in a prominent Prekmurje hotel family, the victim is the owner of the hotel, and every trace of her husband is lost. Although Inspector Houra would like to close the case as soon as possible, as he is convinced that it is a "classic Slovenian tragedy" after a marital dispute, Vrenko's eye notices details that take him all the way to Maribor. While Vrenko solves the murder with Houra, father Boris befriends Ana, a voluntary peer, in the thermal baths.
