The Oath

When a random mushroom picker finds the corpse of a young man in the woods, all indications are that the young man died by unfortunate circumstances. The investigating team headed by Captain Petr Beránek is completely convinced of that. However, a break in the case comes when investigators are called to another dead young man who was closely linked to the first dead man. A complex investigation takes the detectives into the recent past and suddenly nothing is as it seems. There are several potential perpetrators, and investigators must convict the right one.
Will the artist Ctirad Karafiát help them, as he has done so many times in the past?