Dmitry is in despair: his young wife Nadenka intends to take the children and go to her lover. A successful businessman, giving in to everyday problems, pins all his hopes on private detective Yulia Zemtsova. There is no Crime in this situation, and Yulia bravely gets out of it: she lures Nadenka out of the house with a message about it. that her lover is in danger, while nanny Alice, at Dmitry’s request, takes the kids to his mother. The talented script goes like clockwork, but suddenly the villain-lover is found murdered, and numerous witnesses claim: at the crime scene they saw a lady in a blue raincoat, which Nadenka was sporting...