Based on a stage play of the same name by the one of the biggest names in the history of Latvian literature Rainis, "Put, vejini" tells a story of an unconventional love that blossoms between the handsome, wealthy and impetuous merchant Uldis and the timid, humble and clear-hearted orphan Baiba.

In the experimental clinic, a batch of valuable drug was stolen. Major Grigast suspects that someone from the clinic is involved in this. He entrusts this complex matter to a young investigator Mara. An investigation leads her to a distant border town in the south of the country, where the offender intended to ship the drug abroad.