If Romka had not slept through the required stop on the train and had not ended up in an unfamiliar village, where he was suspected of stealing money and a plastic card, it is unlikely that he would have been able to once again demonstrate his detective abilities to the world! But now he has a real job. Several mysterious thefts occurred in the holiday village. Now all suspicions fall on the homeless child Ruslan. After all, only a kid like him could crawl through the narrow window and steal the money. Moreover, the boy ran away as soon as he was asked a few questions. Romka comes up with theories that he must work out. It's just adults - they always get in the way and confuse all the cards! But once the great detective of all times and peoples gets down to business, no adults can stop him!..